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1. A pedological study attempting to combine soil taxonomy and WRB classification systems

Author

Adel M.A. Zayed, Mamdouh K. Abdel Ghaffar, Faiza S. Ali, and Esmail H. Ewida

Subjects
north-east nile delta, pedological study, physiographic units, soil classification, River, lake, and water-supply engineering (General), TC401-506, Irrigation engineering. Reclamation of wasteland. Drainage, TC801-978
Abstract

The study area is located in the North-Eastern part of the Nile Delta, northern of Ismailia canal and western Suez Canal. It comprises an area of about 3,058.8 km2 (728,285.38 feddans). This work aims to identify the main physiographic units and its features, as well as emphasise the importance of combining soil taxonomy (2014) and WRB classification (2022) systems. Two main physiographic units were distinguished in the study area according to the previous studies, interpretation of satellite image and digital elevation model (DEM) as well as field observations; the first consists of fluvio-marine flats and the second river terraces which include the fluvial and deltaic origin. According to field morphological descriptions as well as chemical and physical analyses, representative profiles are classified by using both Soil Taxonomy and WRB systems. The current study is the third manuscript to emphasise the importance of using both systems together in order to obtain maximum possible characteristics of the earth. Below are examples that illustrate this importance. Soils of profile No. 4 which represent the fluvio-marine soils are classified according to soil taxonomy as follows: Typical Haplosalids, fine silty, mixed, thermic. While these soils are classified according to WRB as follows: Fluvic Sodic Solonchaks (Siltic/Loamy/Clayic, Chloridic, Evapocrustic, Ochric, Hypersalic). Soils of gypsiferous which represent soils of profile No. 6 are classified according to Soil Taxonomy as: Gypsic Aquisalids, loamy over sandy, mixed, thermic, whereas the application of the WRB system reveals the following: Fluvic Calcic Gypsic Sodic Gleyic Solonchaks (Loamic, Chloridic, Hypersalic).

Published
2023
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2. Design of Solar dish concentration by using MATLAB program and Calculation of geometrical concentration parameters and heat transfer

Author

null Yaseen. H. Mahmood and null Mayadah K h. Ghaffar

Subjects
General Medicine
Abstract

Renewable energy sources plays an important role in electricity generation. Various renewable energy sources like wind, solar, geothermal, ocean thermal, and biomass can be used for generation of electricity and for meeting our daily energy needs. Energy from the sun is the best option for electricity generation as it is available everywhere and is free to harness. The goal of research is to calculate the energy, engineering characteristics of solar concentrators by writing their own equations MATLAB program and compare the theoretical results with the results of the researchers was compatible.

Published
2023

3. Detection of acute small amount of subarachnoid hemorrhage: Comparison between fluid-attenuated inversion recovery MR imaging and CT

Author

Maha K. Abdel Ghaffar, Raymond Z. Eleya, and Mohamed A. Nassef

Subjects
Subarachnoid hemorrhage, CT, FLAIR, Lumbar tap, Medical physics. Medical radiology. Nuclear medicine, R895-920
Abstract

Purpose: To evaluate the possibility of detecting small amount of acute subarachnoid hemorrhage (ASH) diluted by CSF not revealed by CT but identified on fluid-attenuated inversion recovery (FLAIR) MRI. Patients and methods: 50 patients with acute neurological symptoms were referred from the neurosurgery department to the radiodiagnosis department for computed tomography CT and magnetic resonance imaging MRI examination. Results: Lumbar puncture proved 41 positive cases, MRI (FLAIR) interpreted 43 positive cases (40 true positive and 3 false positive) and 7 negative cases (6 true negative and one false negative) while CT interpreted 39 positive cases (37 true positive and 2 false positive) and 11 negative cases (7 true negative and 4 false negative). Conclusion: FLAIR MRI was more sensitive and more accurate in the diagnosis of acute SAH than CT scan, having a much higher negative predictive value to exclude acute SAH, however its positive predictive value was slightly lower than CT, but there was no statistically significant difference statistically between the two in diagnosis of SAH.

Published
2014
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4. The update of ultrasound techniques in diagnosis of inflammatory bowel disease

Author

Mohamed A. Nassef, Samer M. Botros, and Maha K. Adel Ghaffar

Subjects
High resolution ultrasound, Color Doppler, Inflammatory bowel disease, Medical physics. Medical radiology. Nuclear medicine, R895-920
Abstract

Objective: To evaluate the value of conventional abdominal ultrasound and color Doppler in the diagnosis of inflammatory bowel disease (IBD) and its complications. Materials and methods: 40 patients suffering from colonic symptoms were evaluated by high resolution ultrasonography and color Doppler scanning. Results: The accuracy of conventional abdominal ultrasound in detecting inflammatory bowel cases was 80% and the accuracy of color Doppler in detecting the hypervascularity was 75%. Conclusion: Conventional ultrasound is a widely available non-invasive method for imaging the alimentary gastrointestinal tract. This can provide an important contribution for diagnosis and monitoring of disease activity. Color Doppler sonography has proved to be a valuable method for the assessment of disease activity in inflammatory bowel disease.

Published
2014
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5. Value of implantable peritoneal ports in managing recurrent malignant ascites

Author

Maha K. Abdel Ghaffar, Mohamed S. Hassan, and Mohamed Y. Mostafa

Subjects
Malignant ascites, Percutaneous palliation, Implantable peritoneal port, Medical physics. Medical radiology. Nuclear medicine, R895-920
Abstract

Purpose: To evaluate the safety and efficiency of percutaneous implantable peritoneal port in minimally invasive treatment of intractable ascites. Patients and methods: 40 patients with malignant ascites were referred from the oncology clinic to the radiodiagnosis department for percutaneous placement of peritoneal port catheter as a palliative treatment under guidance of ultrasonography and fluoroscopy. Ports were evaluated for safety and efficiency. Results: The technical insertion success rate of percutaneous implantable peritoneal port was 100% with gradual removal of ascites together with 100% immediate relief of symptoms. No major complication was noticed however one minor immediate complication (2.5%) was detected as leakage at the port placement site which stopped spontaneously with removal of ascites and conservative patient management .In long term results, one patient (2.5%) developed infection at port site after 3 months of successful ascites drainage. This technique avoided ascites related morbidity, increases patient compliance, and satisfaction by decreasing hospital visits as the drainage and patients monitor can be done at home. Conclusion: The percutaneous implantable peritoneal port system is safe and effective in palliation of symptomatic malignant ascites with minimal invasive treatment. Port aspiration can be performed by patients or family members without nursing assistance or hospital visits.

Published
2014
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6. Critical care usage after major gastrointestinal and liver surgery: a prospective, multicentre observational study

Author

T. Yang, T. Pitts-Tucker, Daron Smith, S. Suresh, A.A. Khetarpal, C. Brathwaite-Shirley, Justine Davies, Sayinthen Vivekanantham, A. A. Adebayo, T. Sorah, N. Yim, H.R. Jackson, Salim Tayeh, R.H. Bremner, A. Piquet, L. Higgs, R. Yuen, P. Fergurson, N.K. Sim, A. Hibberd, A. Mehdi, N. Moody, D. Maru, C. Joyner, I. Hindle Fisher, Vartan Balian, N. Wetherall, Siyin Liu, P.N. Phan, S. Mallick, C. Lek, B. Oremule, S. Nelaj, M. Williams, Maqsood Qamar, A. Menon, M. Mohamud, H. Cheema, C. Chan, H.M. Omer, S.J. Cole, E. Craig, K.E. Leslie, S.S. Talukdar, R.B.S. Holliday, J. Heskin, A. Cody, Syed Shumon, S. McAleer, S. Abburu, P. Deekonda, S.F. Ashraf, R. Bose, AE Cotton, C. McGowan, S. Rashid, K. Theodoropoulou, A. MacAskill, Vishal Narwani, R. Maamari, S. Stokes, L.N. Harris, Peng Yong Sim, Evie Gardner, Leo Ng, N. Chandan, J.W. Lockey, M. Acres, H. Jhala, M.L. Kwan, A. Abdulmajid, A.E. Cardwell, P. Buakuma, C.P. Keane, M. Ahmed, N.J. Chilvers, E. Semple, J. Meek, A.K. Clarke, K. Koysombat, A. Hague, E.J.H. Turner, N. Keelty, P. Karunakaran, K.D. Clement, Mansoor Khan, Y. Cao, O. Prys-Jones, S.L. Walsh, C.N. McKerr, Sanjay Shah, S. Peroos, A. Dhanji, Joseph M. Norris, Neil Smith, M. Lakhani, M. Wijesekera, M. Bhatti, Midhun Mohan, C.Y. Luk, M. Elkawafi, S. Wadanamby, Jameel Mushtaq, Jonathan C. M. Wan, A. Ghaffar, M. Siddiqui, S. Naqib, Michaeline Kelly, J.W. Duncumb, F. Hughes, H.E.M. Jordan, R. Callan, G. Hung, C.F. Brewer, E.M. Ruiz, A. Higgins, C. Horst, C. Roberts, S. Kanabar, C. Wall, A.M. Buchan, A. Luhishi, R.P. Watson, D. Xylas, A. McBride, A. Bell, G. Heppenstall-Harris, A. Pericleous, Akanksha Chhabra, N. Hitchen, P. Raut, Shahzada Ahmed, M. Mirza, C.H. Archer, G. Russell, C.T. Francescon, D.T. Robertson, N. Gardiner, K. Cheng, A. Mishra, E. Webb, L. Rothwell, Dee A. Carter, V. Gupta, M. Johnstone, M.E. Kelly, R.D.C. Moon, E. Woin, K. Nadanakumaran, U. White, J. Empey, F. Bulley, R. Morley, G. Charalambous, L. Turner, S. Angelov, D. Coffey, S. Hartley, S. Pronin, E. Seager, R.K. Varma, Sharifullah Khan, S.B. Husnoo, R.K. Sethi, H.M. Chang, A. Duffy, Hew D.T. Torrance, P. Cunha, L. Kimani, W. Din, E.G. Heywood, C. O'Connell, D. Wylam, L. Anderson, N. Ahern, A.J. Trist, D. Burke, A. He, M. Sundar-Singh, A. Odeleye, G. Kumaran, N.L. Salloum, T.M. Brooks, A.S. Lynch, R. Debenham, Howard Gardner, M. Nielsen, M. Das, G. Bingham, S. Qureshi, Aditya Borakati, J. Wylie, Z. Kazmi, J.H. Park, P. Gill, A.R. Craig, M. Chen, Jonathan Wild, S.J. Lim, K.P. Choo, G. Culleton, G. Deas, E.Y. Chua, D. Vanniasegaram, A.H. Amphlett, N. Rajan, J.H. Chen, M. Hameed, Paul Ziprin, C. Toale, D. Gold, N. Keane, Jacob H Matthews, E. Palkhi, Nick Watson, C.M. Hewitt, A. Yousif, Faheem Ahmed, D. Wilkinson, John Mason, C. Reeder, R. Sagar, Deirdre A. Collins, S. Sandhu, S. Singh, J. Herron, A.Y.L. Ng, K. Brennan, K.A. Hoban, V. Navayogaarajah, A.S. Jawad, J.Y.L. Low, Julian R. Johnston, J. Wye, Inge Bernstein, John Parkin, A.D. Henson, Y.H. Soo, C. Topham, M. Steel, Priyank Patel, C.M. Lankage, U. Ashfaq, E.J. Brown, N.L. Foster, C.W. Rookes, R.J. Greig, K.L. McKevitt, N. Jathanna, J.M. Geraghty, M. Karia, S. Cumming, H. Holyoak, S. Parthiban, R.B. Karsan, V.C. Wing, T.E. Glover, R.D. Adams, B.H. Miranda, S. Gaffney, S. Rogers, G.E. Torlot, J.J. Filby, S. Sii, N.M. Rafiq, M. Shoa, S. Singagireson, N. Ungcharoen, Jennie Parker, B.F. Chong, N.M. Shafiq, V. Wong, E. Shakweh, A. Al-Mousawi, J. Pearce, S. Botchey, L. Horne, L. Fletcher, B. Singh, E.A. Whatling, K. Duke, A. Mastan, A.L. Frank, S. Verma, Humaira Shaheen, W. Liew, J. Turner, R. Rampal, T. Filipescu, R.M. Markham, B.A. Patel, S. Lim, A. Atayi, S. Yoganathan, N. Ramsay, M. Khattak, O. Amin, E. McAleer, K. Gohil, H. Shufflebotham, George S Bethell, M. Dhar, J.E. Davies, A.F. Carroll, E. Cornish, S. Omara, J. Bartlett, D. Loughran, A. Iqbal, L.R. Springford, D.R. McCormack, S. Leong, R. Ingham, D. Tan, A. Khajuria, M. Tonkins, M. Petrarca, A.M. Bucko, L.L. McKelvey, C. Gill, C.E. Thakker, K. Mohan, J. Turnbull, G. Cuthbert, W. Dean, R.D.J. Whitham, D.M. Lees, N. Chan, D. Osei-Kuffour, A. Sahathevan, K. Ng, L.B. Anderson, J. Eraifej, A. O'Connor, O.J. Cundy, C. Kong, R.K. Hughes, Bryan Paul Traynor, P. Keane, C. Liu, E. Canning, E.D. Mills, C. Gouldthrope, S. Patel, M.J.V. Holmes, C. Cullen, Lisa McNamee, Alberto Pizzolato, P. Harries, M. Elseedawy, R. Varley, C. Whacha, S.G. Ratu, A. Wright, S. Parsons, Pishoy Gouda, A. Mian, R. Bhudia, R. Adams, N. Bell, Talisa Ross, R. Reid, J.P. Shah, Sarah Dean, C. Neophytou, Alex Ward, J.D. Thompson, M. Seedat, A. Ramnarine, R.T. Harris, A. Qureshi, C. Major, Y. Sinha, A.S. Rocke, C.S. Yong, P. Kwang, David Neil Cooper, L. Aildasani, R.W. Goh, A.R. Dyal, L. Braganza, L. Healy, N. Davies, T. Reakes, N. Patel, S. Sng, C. Brennan, Z.R. Bakewell, S.L. Jenkin, Ahmed Daoub, I.A. Rhema, R.A. Walford, O. Spence, L. Yow, E.J. Roberts, W. Cymes, Y. Liew, E. Segall, June A. Sullivan, K.K. Sandhu, L. Satterthwaite, G.X. Xu, R.M. Waldron, S. McGarvie, D. Brown, M. Alizadeh, J.A. Syeed, H.F. Roberts, P. Dawson, H.R. Abdikadir, S. O'Connor, Y. Maheswaran, B.A. Hughes, B.A. Atraszkiewicz, K. Singh, C. Mcgenity, A.D. Wood, Ewan D. Kennedy, S.X. Poo, S. Mitrasinovic, Max Marsden, A. Ibrahim, Daniel F. McAuley, M. Attalla, S. Govinden, Siti Asma' Hassan, T. Raghvani, T. Bloomfield, R. Heminway, M. Ali, K.L. Robertson, P. Lalor, T. Dogra, I. Antoniou, A. Tahmina, Markus L. Sagmeister, Ronan McMullan, J. Matthams, Richard J. Egan, Elspeth Cumber, M. Dolaghan, P. Sritharan, S. Sarwar, E.S.M. Tan, S.E. Murray, S. Morris, S. Mansoor, M. King, Randall V. Martin, P. Williams, G. Brent, N.B. Reid, S. Collinson, T. Sarvanandan, R. Ratnakumaran, R.E. Keeling, M.A. Sherif, D. Thomas, I.J. Clark, R. Coulson, T.P. Bemand, A. Abid, A.L. Martin, J.C.K. Ng, P. Avery, Y. Narang, R. Manson, H. Petra, J.E. Giles, A.E. Lim, N.A. Vithanage, S. Osman, D. Elf, Panagis M. Lykoudis, A. Ang, Debra Salmon, A. Croall, T. Sale, S. Bonsu, Y.P. Mogan, G.E. Cooper, J. Lamont, S.T. Marchal, P. Naran, A.N. Kumar, R. Owasil, F. Koumpa, J.Q. Ng, P.N. Nesargikar, J. Boyle, Ryan Preece, E. Sewart, S. Lee, S. Kosasih, N. Jamal, Stephen J Chapman, N.A. Redgrave, C. Holmes, A.E. Barthorpe, S. Mistry, J.A. Yates, Robin Wilson, E. Prakash, J.Y. Kee, S.M. Anderson, R.S. Suresh, N. Hussain, S. Gentry, S. Darr, H. Heneghan, H.D. McRobbie, S. Assadullah, Shivam Bhanderi, C. Weston, A. Delport, A. Winarski, M.M. Li, T. Tharmachandirar, N. Canning, P.R. Forrest, Adam J Boulton, A. Ponweera, G.E. Stewart, J.S. Ahn, J. Hartley, A. Isaac, J.L.Y. Allen, R. Carr, S. Gokani, J. Zhao, C. Player, D. Sim, W. English, R.J. McGalliard, S. Cullen, R. Thethi, A. Livesey, K.N. Lwin, M. K. Abd Ghaffar, C.L. Knight, P.C. Hurst, A.Y. Tay, Devender Mittapalli, F. Winslow, G. Bhaskaran, L. Gauntlett, W. Leung, D.M. Golding, A. Wali, D.C. Marshall, H. Ross, K.P. Raman, P.J. Teoh, C. Allan, I. Nehikhare, C.M. Ventre, M. Venn, J.A. Crewdson, A. Shukla, N. Ramjeeawon, S. Shahid, P. Mithrakumar, J. Fern, Y. Tan, H. Haq, S. Turaga, U. Hayat, C. Palmer, H. Goradia, T. Ramtoola, J. Bloomer, C. Chhina, Z. Momoh, W.M. Wynell-Mayow, N. Jayakody, M. Bravo, J. Gabriel, R. Khanijau, L. Esteve, A. Malik, R.D. Obute, S. Sheth, S. Lunawat, U. Qureshi, C. Rees, A. Kerai, M. Peters, A.Y. Tsui, K. Kow, M. Trail, A. Coates, F. Long, V. Paraoan, M.T. Stoddart, N. Li, M. Bright, W.W. Chaudhry, M.K. Malys, S. Owczarek, C.L. Jubainville, E. Brennan, M. Hanrahan, A. Wang, A. Burgess, S. Dutt, N. Varma, R.P. Williams, A. Ledsam, R.T. Buckle, W. Ho, U. Sajjad, B. Goh, M.R. Hardy, E. Lim, L.J. Burney, C.S.D. Roy, Thomas M Drake, Harry J. Gilbert, A. Yener, A. Trimble, Archana Shah, H. Ahmed, E.C. Barton, K. Eparh, C. McCrann, F. Harding, J. Mah, D. Kotecha, A. Al-Robeye, J. MacDonald, S. Kim, Andrew Logan, C. McLaughin, H. Collier, O. Brewster, J. Loveday, L. Tung, S. Dindyal, O. Al-Obaedi, A. Simpson, M. Sirakaya, F. Morgan, G.S. Ng, S. Mahboob, D. FitzPatrick, A. Jindal, O. O'Carroll, Y. Devabalan, T. Axelson, D. Rojoa, K. Sasapu, Kirsty Davies, J. Moradzadeh, Ewen M Harrison, K. Gandhi, S. Beecroft, G. McCabe, C.P. Chilima, T. Goldsmith, H.Z. Bazeer, N. Kalra, P. Morrison, T.C. Hoskins, J.J. Wiltshire, A. Narain, D. Joshi, D. Horth, H.C.P. Wilson, Y.F. Dennis, M. Mills, C. Diaper, J.A. Sanders, S.M. Chiu, J. Coffin, V. Elangovan, K.S. Dolbec, H.L. Warwick, R.H. Shuttleworth, T. Patel, R. Goodson, F.S. Brown, Jane Lim, O. Ziff, M. Rashid, V. Mirdavoudi, K.G. Reid, A. Broyd, E. Woon, M. Zuhair, A.D. Greenhalgh, L.R. Wingfield, S. Stevens, O. Hussain, G. Pandey, A. Bakhsh, I.B. Ptacek, J. Dobson, L. Bolton, A.L. Kerr, T.M.P. Fung, P. Narayan, T. Ward, Ruth Lyons, C. Robinson, Buket Gundogan, S. Akhtar, P. Vanmali, L. Austreng, N. Kelly, M. Kadicheeni, H Ali, P. Holton, H. Turley, C.J. Morrison, L. Hu, M. Sukkari, D.A. O'Sullivan, J. Brecher, C.J. White, M.A. Charalambos, William Bolton, M. Tahir, L. Grundy, T.P. Pezas, Ewan Brown, Nicholas Bullock, A.M.A. Shafi, A. Aslanyan, Michael F. Bath, H. Wilson, P.C. Copley, S.E. Scotcher, Heather Kennedy, N. Bassam, A. Omar, G.D. Stott, S. Ashraf, E. Galloway, R.D. Bartlett, H. Amin, Y.N. Neo, W.C. Soon, S. Rabinthiran, C. Phillips, L.A. Henderson, K. Whitehurst, A. Kahar, S. Sukumar, M.R. Williams, W.A. Gatfield, C. Ntala, K. Dear, A.R. Chitnis, M. Eragat, H.C. Huang, K. O'Sullivan, N. Yong, J. Robson, A. Valli, A. Mohite, G.J. Salam, F. Tongo, S. Lopes, R.A. O'Loughlin, S.L. Hickling, J. Fong, A. Chung, Kathy Nicholls, H. Abid, S. Balaji, J. Hardie, T. Reeves, H.R. Paine, M. Hayat, H. Nayee, Y.N. Suleman, S. Tan, M. Sharifpour, X. Chen, I. Barai, A. Yan, M.A. Gillies, T.W. Tilston, A. Kreibich, Y.H. Tan, A. Murtaza, Chris Dunn, P. Jull, J.W. Kim, A.D. Semana, N. Abuhussein, P. Shepherd, L. Derbyshire, P.M. McEnhill, J.B. Patel, C. Toh, T. Arif, B.W. Matthews, D. Shanahan, N. Seneviratne, L. Carr, A. Curran, A. Batho, L.D. O'Flynn, R. McAllister, A. Durr, Rahul Bhome, S. Mackin, K. Ahmad, R. Shaunak, S. Bassiony, H.A. Khokhar, R. Chin, R. Priestland, G.X.J. Sherliker, J.H. Entwisle, C. Anandarajah, H. Aziz, M. Chaudhary, A. Kishore, H. Adjei, M. Minhas, S.W. McLure, T. Kane, E. Ingram, T. Fautz, D. Chrastek, R. Singh, B.N. Shurovi, A. Asmadi, N. Ansari, J. Mahmood, K. Patel, A.N. Street, A. Thacoor, C. Girling, L. Cheskes, V. Shatkar, B. Ali, A. McGrath, Shaun Trecarten, J.D. Farmer, R. Dean, R.C. McLean, P.L.M. Harrison, S. Iqbal, S. Hirani, R. Fleck, S. Pope, C.Y. Kong, A.M. Demetri, H. Selvachandran, M. Malaj, H.K. Blege, B.D. Mistry, C.M. Grossart, R. Slade, S.A. Stanger, A.J. Dhutia, A. Amajuoyi, Ased Ali, M. Robinson, R. Punj, Jane Dickson, J. Lucas de Carvalho, Jessica Harvey, L.M. Bullman, D Nepogodiev, H.L. Joyce, Catrin Morgan, J. Paul, R. Vaughan, A. Prabhudesai, C. Egerton, A. Sheldon, C. Holloway, K. Brzyska, J. Ashwood, Christine McGarrigle, S. Pal, H. Rosen O'Sullivan, A. Rangedara, A. Hill, A. Szczap, S. Hudson-Phillips, J. Lavery, Harriet Mitchell, J.D.B. Hayes, M. Salem, F.A. Bamgbose, J. Bassett, V. Raghuvir, R. Dennis, S.E. Cox, C.J. Dewdney, N. Mitha, A.W. Roberts, Brij Patel, J. Wills, R. Goodier, R.M. Koshy, D. Weinberg, E.J. Griffin, Harriet L. Mills, A. Marsh, Z. Khonat, Kenneth A. McLean, E. Hester, T. Spencer, A.H.Y. Lee, J. Chong, L.R. Bookless, Michael J. Raphael, P. Sangal, M. McMenamin, H. Khalid, G.S. Harbhajan Singh, F.I. Chaudhry, N. Favero, J.E.F. Fitzgerald, Chetan Khatri, J. Remedios, A. Charania, Daniel J. George, S. Jackson, C. Murkin, R. Dawar, I. Kisyov, E. Wong, R.J. Pearse, A.N. Baker, L. Carthew, N. Warren, I. Adeleja, M. McCann, C. Drislane, R. Tan, S. Ho, K. Hulley, L. Doan, E.M. O'Neill, R. Gratton, M. Srikantharajah, C. Henderson, L. Puan, H. Whittingham, A. Johnston, E. Mckean, A.K. Tear, D. Varma, H. McFarlane, C.N. Lou, E.M. Cumber, Aneel Bhangu, Z.H. Siddiqui, J. Cleere, M. Chamberlain, James Glasbey, Sarah Ali, M. Masood, A. Linton, G. Chillarge, M. Davis-Hall, A. Anilkumar, U. Khan, A. Tai, R. Shepherd, Joshua Burke, W. Loke, M. Edison, A. Mortimer, N. Anim-Addo, R.S. Reehal, R. Blessed, Daniyal J. Jafree, M.S. Sait, H.C. Copley, N. Ward, M. Wells, K. Raji, J. Gulati, H. Keevil, C.A. Asbjoernsen, A. White, Nikita R. Bhatt, J. Barnes, S. Wang, F. Cheung, Clive Graham, K. Dynes, C. Dorman, E. Strange, A. Radotra, A. Reed, R. Nachiappan, I. Ibrahim, F. Acquaah, P. Jalota, S. Stezaker, J.E. Rogers, MI Perera, R. Kiff, T. Rangan, R. Weaver, E. Mazumdar, J. Beckett, Rowena McGregor, E.V. Wright, N. Punjabi, V. Charavanamuttu, Stephen O'Neill, S. Majid, Zulfiqarali G. Abbas, S.M. Lakhani, G. Rattan, J. Lua Boon Xuan, K. Joshi, HE Whewell, M. Patel, T.M. Schulz, O.K. Vernon, L.F. McClymont, N. Woodcock, L. Gray, Reena Shah, H. Thakur, F.S. Peck, P. Karia, L. Ashken, S. Rinkoff, M. McDowell, L. Chew, C.D. Blore, A.C.D. Smith, E. Auyoung, L.M. Sabine, O. Parker, S.M. Choi, V. Thirumal, J. Pickard, L. Murphy, C.J. Coffey, P. Dube, M.H. Abul, T. Khan, J. Campbell, M.T. Turner, Adam Gwozdz, K.K. Ong, B. Durrani, A. O'Kane, A.S. North, Najeeb Ahmed, C. Xiao, D. Maclennan, Nora Abdul Aziz, S.A. Semnani, L. Bell, Amy Ashton, L. Crozier, V. Teng, M. O'Bryan, K. Clesham, Vanisha Patel, L. Kretzmer, T. Lo, G.H. Stanley, M.D. Theodoreson, J.K. Mehta, F. Morris, L. Howells, R. Pinto, T. Bergara, J. Matheson, E. Devlin, E.T. Tan, E. Toner, L. Jacob, Sher Ahmad, J. Sellathurai, Catherine Doherty, J. Norton, C. Maxwell-Armstrong, S. Ng, T.R. Barrow, N. Boxall, A.A. Thevathasan, M. Ryan, E. Uppal, C. Jenvey, G.E. Aidoo-Micah, Karan Verma, U. Datta, F. Hirst, H. Woodward, J. Khangura, J. Chervenkoff, F. Edozie, E. Burke, M.G. Rasiah, A. Jaitley, Thomas L. Lewis, D. Lazenby, A. Lotfallah, A. Khan, E. McCance, Henry A. Claireaux, A.S. Fawaz, P.D. Jewell, R.G. Tharakan, R. Narramore, E. Heathcote, G. Nixon, H. Chin, E. Sun, L.S. Chew, K. Lim, G. Lakshmipathy, R. Telfer, B.A. Shuker, H. Kitt, O.D. Thompson, N. Behar, H. Naveed, R. Allot, E. Batt, E.J. Stone, J.M. Aithie, I. Henderson, Rakesh Heer, C. Deall, C.J. McIntyre, L. Dinsmore, S. Milne, Bhavik Anil Patel, N. Cody, A. Pandey, A. Kaushal, M.C. Sykes, N. Maple, R. Simpson, S. Lynne, S. Shahidi, M.I. Zegeye, B. Forte, P. Khonsari, G. Thomas, O. Sitta, V. Robertson, K. Mazan, J. Prest-Smith, D. O'Reilly, A. Sreh, A.E. Salih, Anna Craig-Mcquaide, Vandana Agarwal, E.G. Chisholm, Z. Afzal, G.L. de Bernier, P.W. Stather, Lucy Elliott, A. Collins, D. Lim, M. Abdelhadi, Q. Lu, and J. Stein

Subjects
Adult, Male, medicine.medical_specialty, Adolescent, Critical Care, medicine.medical_treatment, Patient Care Planning, Young Adult, 03 medical and health sciences, Patient Admission, 0302 clinical medicine, 030202 anesthesiology, Laparotomy, Intensive care, medicine, Humans, Hospital Mortality, Prospective Studies, Prospective cohort study, Digestive System Surgical Procedures, Aged, Aged, 80 and over, Postoperative Care, business.industry, Patient Selection, Professional Practice, Odds ratio, Middle Aged, United Kingdom, Confidence interval, Anesthesiology and Pain Medicine, Cohort, Emergency medicine, Female, Observational study, Emergencies, business, Ireland, Abdominal surgery
Abstract

Patient selection for critical care admission must balance patient safety with optimal resource allocation. This study aimed to determine the relationship between critical care admission, and postoperative mortality after abdominal surgery.This prespecified secondary analysis of a multicentre, prospective, observational study included consecutive patients enrolled in the DISCOVER study from UK and Republic of Ireland undergoing major gastrointestinal and liver surgery between October and December 2014. The primary outcome was 30-day mortality. Multivariate logistic regression was used to explore associations between critical care admission (planned and unplanned) and mortality, and inter-centre variation in critical care admission after emergency laparotomy.Of 4529 patients included, 37.8% (n=1713) underwent planned critical care admissions from theatre. Some 3.1% (n=86/2816) admitted to ward-level care subsequently underwent unplanned critical care admission. Overall 30-day mortality was 2.9% (n=133/4519), and the risk-adjusted association between 30-day mortality and critical care admission was higher in unplanned [odds ratio (OR): 8.65, 95% confidence interval (CI): 3.51-19.97) than planned admissions (OR: 2.32, 95% CI: 1.43-3.85). Some 26.7% of patients (n=1210/4529) underwent emergency laparotomies. After adjustment, 49.3% (95% CI: 46.8-51.9%, P0.001) were predicted to have planned critical care admissions, with 7% (n=10/145) of centres outside the 95% CI.After risk adjustment, no 30-day survival benefit was identified for either planned or unplanned postoperative admissions to critical care within this cohort. This likely represents appropriate admission of the highest-risk patients. Planned admissions in selected, intermediate-risk patients may present a strategy to mitigate the risk of unplanned admission. Substantial inter-centre variation exists in planned critical care admissions after emergency laparotomies.

Published
2019

7. Watershed Characteristic and Potentiality of Wadi El-Arish, Sinai, Egypt

Author

M K Abdel Ghaffar, M.A. Azzam, A. D. Abdellatif, and M H Riad

Subjects
Hydrology, geography, geography.geographical_feature_category, Drainage basin, Relief ratio, Aquifer, Groundwater recharge, Drainage, Surface runoff, Wadi, Geology, Drainage density
Abstract

The present study is an attempt to evaluate the watershed characterization and potentiality of Wadi El-Arish, Sinai, Egypt using Remote Sensing (RS) and Geographic Information System (GIS) techniques. Thirty morphometric parameters (e.g. stream numbers, orders, lengths, frequency as well as bifurcation ratio, drainage density and relief) were measured depending on SRTM data of digital elevation model (DEM) with 30m resolution that enhanced by topographic maps (1:50,000). Ten compound parameter values were calculated and prioritization rating for erosion risk assessment was carried out. Based on the values of the effective morphometric parameters, flash flood hazards were identified and evaluated. The land use map was constructed from the geomorphological units of Wadi El-Arish basin as well as the field observations. The drainage area of Wadi El-Arish watershed is 22260.3 km 2 . It is subdivided into twelve sub-basins of different areas. The morphometric analysis indicates that the watershed is of eight stream order with dendritic type of drainage pattern and homogeneous nature. The relief ratio, slope, ruggedness number and visual interpretation of the DEM indicate variable slope and topography with late mature stage of geomorphic development. On the other hand, the drainage density, texture, circulatory and elongation ratios prove that the majority of the sub-basins are almost elongated and have coarse and intermediate drainage texture which indicate medium to high infiltration capacity. Accordingly, these sub-basins most probably have good groundwater prospect where the most rainfall infiltrate to recharge the aquifer via permeable soils and/or fractured and weathered rocks. Concerning the soil erosion condition, the sub-basins with the lowest compound parameter value (e.g. W10: Wadi Abu Aliqanah and W12: Wadi Aqabah) have been subjected to maximum soil erosion and need immediate soil conservation measures. Based on the morphometric parameters which have a direct influence on flooding prone area, the flash flood hazard of Wadi El-Arish sub-basins are classified into three groups; namely high, medium and low hazard degree. For mitigation measure (e.g. erection of the runoff water) some dams and dikes at the crossing point between the seventh stream order and eighth stream order are recommended to be constructed. In addition, these measures will support the recharging of the shallow groundwater storage and aquifers. According to the potentiality of the study watershed, the land use map which constructed from the geomorphological units classified the Wadi El-Arish basin into four classes; namely high, moderate, low and non-suitability classes for agriculture uses. The volume of annual flood for Wadi El-Arish watershed was classified into five classes graded from very high to very low. The groundwater potentiality map indicates that the different geographic locations are suitable for groundwater storage with different magnitudes and potentialities, but the overall groundwater potential is of the moderate class. The Lower Cretaceous is considered to be the aquifer with the greatest development potential among the other aquifer systems due to their limited extent, poor productivity and/or water quality.

Published
2015

8. The update of ultrasound techniques in diagnosis of inflammatory bowel disease

Author

Samer Malak Botros, Mohamed Amin Nassef, and Maha K. Adel Ghaffar

Subjects
lcsh:Medical physics. Medical radiology. Nuclear medicine, medicine.medical_specialty, business.industry, Abdominal ultrasound, lcsh:R895-920, Hypervascularity, Color doppler, Conventional ultrasound, medicine.disease, Inflammatory bowel disease, Ultrasound techniques, Disease activity, High resolution ultrasound, Radiology Nuclear Medicine and imaging, Medicine, Radiology, Nuclear Medicine and imaging, High resolution ultrasonography, Radiology, Color Doppler, business
Abstract

Objective To evaluate the value of conventional abdominal ultrasound and color Doppler in the diagnosis of inflammatory bowel disease (IBD) and its complications. Materials and methods 40 patients suffering from colonic symptoms were evaluated by high resolution ultrasonography and color Doppler scanning. Results The accuracy of conventional abdominal ultrasound in detecting inflammatory bowel cases was 80% and the accuracy of color Doppler in detecting the hypervascularity was 75%. Conclusion Conventional ultrasound is a widely available non-invasive method for imaging the alimentary gastrointestinal tract. This can provide an important contribution for diagnosis and monitoring of disease activity. Color Doppler sonography has proved to be a valuable method for the assessment of disease activity in inflammatory bowel disease.

Published
2014

9. Value of implantable peritoneal ports in managing recurrent malignant ascites

Author

Mohamed Yassin Mostafa, Maha K. Abdel Ghaffar, and Mohamed S. Hassan

Subjects
lcsh:Medical physics. Medical radiology. Nuclear medicine, medicine.medical_specialty, Percutaneous, medicine.diagnostic_test, business.industry, General surgery, lcsh:R895-920, Port (computer networking), Malignant ascites, Surgery, Patient management, Catheter, Percutaneous palliation, Radiology Nuclear Medicine and imaging, Implantable peritoneal port, Ascites, medicine, Fluoroscopy, Radiology, Nuclear Medicine and imaging, Radiology, medicine.symptom, Complication, Patient compliance, business
Abstract

Purpose To evaluate the safety and efficiency of percutaneous implantable peritoneal port in minimally invasive treatment of intractable ascites. Patients and methods 40 patients with malignant ascites were referred from the oncology clinic to the radiodiagnosis department for percutaneous placement of peritoneal port catheter as a palliative treatment under guidance of ultrasonography and fluoroscopy. Ports were evaluated for safety and efficiency. Results The technical insertion success rate of percutaneous implantable peritoneal port was 100% with gradual removal of ascites together with 100% immediate relief of symptoms. No major complication was noticed however one minor immediate complication (2.5%) was detected as leakage at the port placement site which stopped spontaneously with removal of ascites and conservative patient management .In long term results, one patient (2.5%) developed infection at port site after 3 months of successful ascites drainage. This technique avoided ascites related morbidity, increases patient compliance, and satisfaction by decreasing hospital visits as the drainage and patients monitor can be done at home. Conclusion The percutaneous implantable peritoneal port system is safe and effective in palliation of symptomatic malignant ascites with minimal invasive treatment. Port aspiration can be performed by patients or family members without nursing assistance or hospital visits.

Published
2014

10. Multicentre prospective cohort study of body mass index and postoperative complications following gastrointestinal surgery

Author

M K, Abd Ghaffar

Subjects
Adult, Aged, 80 and over, Male, Adolescent, Original Articles, Middle Aged, Overweight, United Kingdom, Body Mass Index, Young Adult, Logistic Models, Postoperative Complications, Risk Factors, Humans, Female, Original Article, Obesity, Prospective Studies, Ireland, Digestive System Surgical Procedures, Aged
Abstract

Background There is currently conflicting evidence surrounding the effects of obesity on postoperative outcomes. Previous studies have found obesity to be associated with adverse events, but others have found no association. The aim of this study was to determine whether increasing body mass index (BMI) is an independent risk factor for development of major postoperative complications. Methods This was a multicentre prospective cohort study across the UK and Republic of Ireland. Consecutive patients undergoing elective or emergency gastrointestinal surgery over a 4‐month interval (October–December 2014) were eligible for inclusion. The primary outcome was the 30‐day major complication rate (Clavien–Dindo grade III–V). BMI was grouped according to the World Health Organization classification. Multilevel logistic regression models were used to adjust for patient, operative and hospital‐level effects, creating odds ratios (ORs) and 95 per cent confidence intervals (c.i.). Results Of 7965 patients, 2545 (32·0 per cent) were of normal weight, 2673 (33·6 per cent) were overweight and 2747 (34·5 per cent) were obese. Overall, 4925 (61·8 per cent) underwent elective and 3038 (38·1 per cent) emergency operations. The 30‐day major complication rate was 11·4 per cent (908 of 7965). In adjusted models, a significant interaction was found between BMI and diagnosis, with an association seen between BMI and major complications for patients with malignancy (overweight: OR 1·59, 95 per cent c.i. 1·12 to 2·29, P = 0·008; obese: OR 1·91, 1·31 to 2·83, P = 0·002; compared with normal weight) but not benign disease (overweight: OR 0·89, 0·71 to 1·12, P = 0·329; obese: OR 0·84, 0·66 to 1·06, P = 0·147). Conclusion Overweight and obese patients undergoing surgery for gastrointestinal malignancy are at increased risk of major postoperative complications compared with those of normal weight., High BMI increases risk of complications

Published
2016

11. Spiral CT virtual bronchoscopy with multiplanar reformatting in the evaluation of post-intubation tracheal stenosis: comparison between endoscopic, radiological and surgical findings

Author

Marwa I Fahmy, Mohamed S. Taha, Maha K. Abdel Ghaffar, Badr Eldin Mostafa, and Enas Abdel Ghany

Subjects
Adult, Male, medicine.medical_specialty, Adolescent, medicine.medical_treatment, Subglottic stenosis, Sensitivity and Specificity, Bronchoscopy, Image Processing, Computer-Assisted, Intubation, Intratracheal, medicine, Humans, Intubation, Prospective Studies, Child, medicine.diagnostic_test, business.industry, General Medicine, medicine.disease, Tracheal Stenosis, Stenosis, Bronchoscopes, Otorhinolaryngology, Child, Preschool, Female, Radiology, Tomography, Airway, business, Tomography, Spiral Computed
Abstract

We evaluated the usefulness and accuracy of spiral CT in detection and assessment of post-intubation tracheal stenosis. Fourteen patients with post intubation stenosis underwent evaluation of their airway by spiral CT scan with multiplanar reformatting (MPR) and virtual endoscopy (VE) and conventional rigid bronchoscopy, and telescopy (RB). The following parameters were assessed: involvement of the subglottic larynx, site, number, and degree of the stenosis. The results were compared with the intra-operative findings. The detection rate for tracheal stenotic lesions was 94% by CT and 88% by rigid bronchoscopy. The sensitivity and specificity of both CT scan and bronchoscopy in the detection of subglottic stenosis was 100%. The preoperative assessment of the length of stenosis was accurate in 14 (87%) of the 16 stenotic segments detected by CT and in 11 (73%) of the 15 segments detected by bronchoscopy. The length of stenosis as assessed intra-operatively significantly correlated with the data obtained with CT scan (r = 0.98, p < 0.001) and RB (r = 0.94, p < 0.001). The grade of stenosis was correctly assessed by bronchoscopy in 13/15 lesions (86%). CT measurements correctly estimated 15/16 (93.75%) lesions and allowed accurate measurements of the stenotic segment as well as the proximal and distal airway segments. Spiral CT scan with MPR and VE may be considered as a substitute to direct endoscopic examination and the additional information on laryngeal function can be easily obtained during flexible nasolaryngoscopic examination of the awake patient. This policy can minimize patient morbidity and spare them an extra anaesthetic for evaluation.

Published
2009

12. Detection of acute small amount of subarachnoid hemorrhage: Comparison between fluid-attenuated inversion recovery MR imaging and CT

Author

Maha K. Abdel Ghaffar, Mohamed Amin Nassef, and Raymond Z. Eleya

Subjects
lcsh:Medical physics. Medical radiology. Nuclear medicine, medicine.medical_specialty, Subarachnoid hemorrhage, medicine.diagnostic_test, Lumbar puncture, business.industry, lcsh:R895-920, Magnetic resonance imaging, Fluid-attenuated inversion recovery, medicine.disease, Mr imaging, Predictive value, nervous system diseases, True negative, Radiology Nuclear Medicine and imaging, Lumbar tap, mental disorders, medicine, FLAIR, Radiology, Nuclear Medicine and imaging, Neurosurgery, Radiology, business, CT
Abstract

Purpose To evaluate the possibility of detecting small amount of acute subarachnoid hemorrhage (ASH) diluted by CSF not revealed by CT but identified on fluid-attenuated inversion recovery (FLAIR) MRI. Patients and methods 50 patients with acute neurological symptoms were referred from the neurosurgery department to the radiodiagnosis department for computed tomography CT and magnetic resonance imaging MRI examination. Results Lumbar puncture proved 41 positive cases, MRI (FLAIR) interpreted 43 positive cases (40 true positive and 3 false positive) and 7 negative cases (6 true negative and one false negative) while CT interpreted 39 positive cases (37 true positive and 2 false positive) and 11 negative cases (7 true negative and 4 false negative). Conclusion FLAIR MRI was more sensitive and more accurate in the diagnosis of acute SAH than CT scan, having a much higher negative predictive value to exclude acute SAH, however its positive predictive value was slightly lower than CT, but there was no statistically significant difference statistically between the two in diagnosis of SAH.

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13. Gray scale and color Doppler sonography in the diagnosis of carpal tunnel syndrome

Author

Maha K. Abdel Ghaffar, Soha Eldessouki Ibrahim, Maha A. El-Shinnawy, and Hazem Abd El Rahman Fawzy

Subjects
medicine.medical_specialty, business.industry, Gray scale sonography, Hypervascularity, Color doppler, Color Doppler sonography, medicine.disease, Median nerve, Rheumatology, body regions, Retinaculum, Electrodiagnostic test, Electrodiagnostic tests, Radiology Nuclear Medicine and imaging, Internal medicine, Edema, medicine, Radiology, Nuclear Medicine and imaging, Radiology, medicine.symptom, business, Carpal tunnel syndrome
Abstract

Purpose To determine the diagnostic accuracy of gray scale and color Doppler sonography in the diagnosis of patients with carpal tunnel syndrome. Patients and methods A total of 53 wrists in 41 consecutive patients with clinical suspicion of carpal tunnel syndrome, referred from the Department of Physical medicine, Rheumatology & Rehabilitation were examined with ultrasonography using a 12 MHz linear array transducer. The presence of median nerve edema, swelling, and bowing of the flexor retinaculum was evaluated by gray scale sonography, while intraneural hypervascularity was evaluated by color Doppler sonography. Sensitivity and specificity were calculated for each sonographic feature and compared with electrodiagnostic test (EDT) results. Results Electrodiagnostic tests confirmed carpal tunnel syndrome in 48 wrists. A median nerve cross sectional area (CSA) of 11 mm2 was calculated as a definition of median nerve swelling. In comparison with electrodiagnostic tests, median nerve swelling showed the highest accuracy (89%) among the gray scale sonographic criteria, and the presence of median nerve hypervascularization showed the highest accuracy (94%) among all sonographic criteria. Median nerve edema and bowing of the flexor retinaculum showed accuracies of 81% and 77% respectively. Conclusion Median nerve intraneural hypervascularity detected by color Doppler sonography is more accurate in detection of median nerve involvement than gray scale sonography criteria in patients with suspected carpal tunnel syndrome.

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