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Introduction Renal Doppler resistive index (RI) and pulsatility index (PI) values are potentially more sensitive at detecting renal abnormalities when compared to standard laboratory indices in patients with HIV/AIDS. To the best of our knowledge, there are no published research articles on renal Doppler indices and their correlation with laboratory indices of HIV sero-positive adult individuals. This study aimed to assess the renal function of HIV-sero-positive adults using RI and PI, and correlating these indices against laboratory values. Methods A prospective cross-sectional study was conducted from July 2019 to April 2020. A purposive sampling method was employed and included 396 HIV sero-positive adult individuals. Sampling for the renal RI and PI was performed at the level of the inter-lober arteries, in between the medullary pyramids. An RI value above 0.70 and a PI value above 1.56 were consider abnormal. Serum creatine and urea together with evidence of proteinuria were recorded at the time of scanning. Results Forty-three (10.9%) men had an abnormal RI, 32 (8.1%) had abnormal PI, five (2.5%) had abnormal creatinine, two (1%) abnormal urea and eight (4.1%) with proteinuria. In women, 29 (7.3%) had abnormal RI, 22 (5.6%) abnormal PI, four (2%) abnormal creatinine and urea and six (3%) had proteinuria. There was a statistically significant weak positive correlation between RI and PI and serum creatinine and urea (r > 0.2, P Conclusion The proportion of patients with abnormal RI and PI was higher than the proportion of participants with abnormal serum urea, creatinine and proteinuria. Renal Doppler indices could be used be used in the early assessment of renal function in HIV sero-positive adults individuals. Implications for practice Serum creatinine and urea are routinely used to evaluate renal function in patients with HIV/AIDS. Findings from this initial study show that RI and PI could be used detecting early renal abnormalities when compared to standard laboratory values.

(HSG) is a special radiological procedure that is used to assess the patency and the structure of the uterus and Fallopian tubes. The main role of HSG is the study of the Fallopian tubes in infertility. Discomfort, anxiety, and pain that might result of the procedure and may vary depending on the individual’s perception. The patient’s perception of a procedure plays an important role in its acceptance. The study aims at evaluating the perception of patients undergoing HSG examination in Kano metropolis. The study design was prospective and cross-sectional conducted in the Radiology Departments of four hospitals in the Kano metropolis from December 2018 to probability sampling method was employed in the study. An ethical clearance to conduct the study was obtained from the Human Research and Ethics Committee of the Kano State Ministry of Health. A structured questionnaire was used as an instrument for data collection. The questionnaire was validated by experienced sing pilot study the reliability of the measuring tool was tested and the Chronbach reliability coefficient was found to be 0.79. Two hundred and fifty six questionnaires were administered to the selected respondents. An informed consent was obtained from all the selected respondents. The obtained data were analyzed using SPSS version 21.0. Out of the 256 (100%) administered questionnaires, 237 (92.6%) were returned, and 226 (88.3%) were properly filled. In 189 (83.63%) respondents, infertility was found to be be the indication for the procedure. 82 (36.3%) of the respondents believed the procedure was for diagnostic purpose, 78 (34.5%) for therapeutic and 28.3% for diagnostic and therapeutic. Patients undergoing HSG in Kano metropolis had a negative perception towards the procedure.

Background:Hysterosalpingography (HSG) is a valuable radiologicalprocedure for imaging the female reproductive tract. Structural abnormalities onhysterosalpingography (HSG) are among the important factors in the evaluationof female infertility. Objectives:The study was aimed at reviewing the available literature onhysterosalpingography findings in infertile women, identifying the missing gapin the subject area, coming up which area of further that will further enhance therole of HSG in the diagnosis of infertility. Methods:The study was a systemic review that focused on the literature on thetopic and keywords of research. The references were obtained using a database;IEEE Xplore, EBSCO, Cochrane and MEDLINE. The search terms used were;hysterosalpingography findings, HSG, detection of infertility, fluoroscopicexaminations. The inclusion criteria are articles published in the English language,non-duplicated and those that full text is available online. Result:Eleven articles were considered for the review. Four of the articles wereprospective, whereas the other seven were retrospective studies. Ten of thereviewed articles are from Africa and only one is from Asia. The most frequentfinding in the reviewed articles on the two continents was bilateral tubalblockage whereas the least frequent finding is associated with the cervix. Themajority of the reviewed articles used short study duration, retrospective, orsmall sample size. None of the reviewed articles established a relationshipbetween the HSG findings with demographic information or clinical history ofthe selected subjects. Conclusion:The findings of the published articles have proven the potentialityof HSG in detecting uterine abnormalities related to infertility. None of thereviewed articles established a relationship between theHSG findings with demographic information or clinical history of the selectedsubjects. &nbsp

Background: Human immunodeficiency virus/acquired immunodeficiencysyndrome (HIV/AIDS) remains a major challenge globally, and approximately180,000 people died from AIDS-related illnesses in Nigeria in 2015. HIVassociated nephropathy is the third most common cause of end-stage renalfailure. Objectives: To review published original research articles on the sonographicevaluation of kidneys in HIV seropositive patients, identifying missing gapsand coming up with an area of further study. Methodology: The study was retrospective and a secondary source of data frompublished original research articles was used. The search was performed throughGoogle search using Google Scholar, EMBASE, PubMed and Medline. All thepublished original research articles in the English language and the availability offull-text articles were included in the study. Results: An electronic search using the search terms had identified 58related published articles, but only 12 articles were reviewed. This study foundout that human immunodeficiency virus-associated nephropathy (HIVAN) to be amost predominant renal disease in HIV positive patients leaving in sub-SaharanAfrica with increased renal parenchymal echogenicity and decreasedcorticomedullary differentiation sonographically, which correlate in raised ofserum creatinine level and the degree of patients immune competence (CD4count). Few studies correlated the sonographic findings with histopathologicalfeature and none uses Doppler ultrasound. Conclusion: This study has identified a correlation of the sonographic findingswith the histopathological features and the use of Doppler ultrasound as themissing gaps from the previously published research articles in the subject area.

Diagnostic x-radiation is an essential part of present-day medical practice being the largest contributor of irradiation to the general population. Therefore, routine checking of x-ray tubes leakage is very important to ensure that leakage radiation at a one-meter distance from focus is less than 1mR/h. The measurement of background radiation was performed during normal departmental working hours: early in the morning before the machines were switched on, and after the machines were switched on. Exposures were performed using different exposure factors and the fall out radiation in both control and uncontrolled areas were also recorded. The highest equivalent dose rate was recorded in the uncontrolled area of room 2, where the mean dose rate was 26.21 μSv/h (in changing room) and 11.67 μSv/h (behind the door), respectively. It follows the dose rate measured in the uncontrolled area of room 1, where the mean dose rate was 6.33 μSv/h (behind the door), 2.96 μSv/h (in changing room B), and 1.56 μSv/h (in changing room A), respectively. The lowest radiation dose was measured in both controlled and uncontrolled areas of CT-scan, where the mean dose rate was 0.17 μSv/h and 0.16 μSv/h, respectively, simply because the room doors and wall are adequately lead-lined and protected. All values obtained in this study are within the permissible limit, except that for uncontrolled areas in x-ray rooms 1 and 2, where radiation dose rates were higher than the reference limit for public exposure.

Background:Due to the risk of hazard from ionizing radiation, non-radiology doctors who refer patients to the radiology departments ought to be knowledgeable enough about what their patients are subjected to. The high throughput of radiology requests in our centre in Nigeria justifiesthis study. Aim:To evaluate the level of knowledge of non-radiology doctors on ionizing radiation with a view to reviewing local protocols on justification of investigations involving ionizing radiation. Material and method:Eighty (80) structured questionnaires were administered to non-radiology doctors practising in different hospitals n Kano city, Nigeria. Answers were elicited on radiation protection principles, concept of ionizing radiation, radiation effects, imaging modalities that emit ionizing radiation, radiation measurements and attitude towards ionizing radiation. Results:Seventy questionnaires were returned out of the eighty sent out withsixty-four (80 %) being properly filled. Knowledge of non-radiology doctors was variable on different indices; 15.6 %, n = 10 (fundamental principles of radiation protection); 45.3 %, n = 29 (effects of ionizing radiation); 34.4 %,n = 22 (knowledge on ionizing property of radiation); 73 %, n = 47 (emission of ionizing radiation by computed tomography); and 85.9 %, n = 55 (interest in specific modality). Conclusion:Non-radiology doctors in Kano metropolis have fairly good knowledge of potential hazards of radiation.

Background: Radiology request cards are essential communication tools between physicians and radiation personnel. Clinical audit is part of quality assurance that guarantees patient care. Objective: To assess the adequacy of patient data and clinical information filled in request cards sent to Radiology Department of our facility by referring clinicians. Material and methods: Four hundred (400) radiology request cards were randomly selected from the records of the department and scrutinized for bio-data/clinical information. Result: Completely filled request cards were 2/267 (ultrasound), 1/40 (computed tomography) and 2/93 (conventional x-ray). Conclusion: Consistency in complete filliing of radiology request cards in our facility was lacking. The audit revealed actual practice, and the need for improvement.

Accurate measurement of liver size allows for the diagnosis of various liver pathologies. Establishing normal liver size and how it is influenced by anthropometric variables is critical in diagnosis and determining the treatment method for the underlying liver pathology. This study was aimed at establishing the relationship between liver dimensions and anthropometric variables. The study was a cross-sectional study conducted in some selected hospitals in Kano Metropolis, Nigeria. Four hundred and twenty-six apparently normal pediatric subjects were studied within the age range of 0 – 0.05 was set as significance level. There was a statistical significant strong positive correlation between cranio-caudal dimension and age, height, weight, BMI and BSA in 12month age group (r=0.74, p=0.000; r=0.86, p=0.000; r=0.64, p=0.000; r=0.74, 0.p=000 and r=0.53, p=0.000 respectively for males and r=0.60, p=0.000; r=0.61, p=0.000; r=0.59; p=0.000; r=0.81, p=0.000 and r=0.66, p=0.001 respectively for females). Also, in the same age group both male and female subjects show significant strong positive correlation between anterior-posterior dimension and BMI & BSA: (r=0.67, p=0.000, r=0.67, p=0.000 respectively for males and r=0.69, p=0.000, r=0.77, p=0.000 respectively for females). This study reported that anthropometric variable such as age, height, BMI and BSA is positively correlated with both cranio-caudal and antero-posterior liver dimension. Keywords: Ultrasound, Liver, Cranio-Caudal, Antero-Posterior, Dimension

Collimation of x-ray beam is an important factor in optimization; good collimation will both minimize the radiation dose to the patient and improve image quality because the amount of scattered radiation will increase as if a large volume of tissue is irradiated. This study aimed to assess the level of collimation for pediatric plain chest radiographs in Aminu Kano Teaching Hospital as an optimization tool. A retrospective audit was conducted on pediatric plain chest radiographs from May 2016 to May 2019 in Aminu Kano Teaching Hospital (Kano, Nigeria) using a simple random sampling technique. Data were collected and recorded using self-developed data capture sheet based on the European Guidelines on quality criteria for diagnostic radiographic images in pediatrics which captures the gender, age, projection, collimation (4 ways, 3 ways, 2 ways, 1 way, no and under collimation). The results showed that the most predominant age group exposed in the study was within 0 to 1 year representing 31.7% (n=76). Also gender distribution showed that more male were exposed than female, representing 55% (n=132). Out of 240 plain chest radiographs, about 77.0% (n=175), showed inadequate collimation. In conclusion,the study revealed poor collimation practice in pediatric plain chest radiographs.

The robustness of speech classification and recognition systems can be improved by the adoption of language distinctive phonetic feature (DPF) elements that can increase the effective characterization of a speech signal. This paper presents the results of applying Hidden Markov Models (HMMs) that perform Arabic phoneme recognition in conjunction with the inclusion and classification of their DPF element classes. The research focuses on classifying Modern Standard Arabic (MSA) phonemes within isolated words without a language context. HMM-based phoneme recognition is tested using 8, 16, and 32 HMM Gaussian mixture models. The monophone configuration is designed with consideration of 2-gram language model to evaluate the inherent performance of the system. The overall correct rates for classifying DPF element classes for the three versions of HMM systems are 83.29% 88.96%, and 92.70% for 8, 16, and 32 HMM Gaussian mixture model systems, respectively.

The presence of mind wandering states during attention-demanding activities may have negative consequences for task-related learning and success. Being able to distinguish between various levels of wandering through brain waves would be a fantastic tool in a variety of fields, including job optimization, driver vigilance monitoring, and even gaming. In this paper, we propose an approach that relies on EEG signal to deal with the issue of mind-wandering recognition as a classification challenge. Our model extracts the most important features of EEG data using a signal clipping and autocorrelation techniques then uses a deep neural network (DNN) to classify brain signal into high-level or low-level of wandering. The experiments demonstrated the effectiveness of the DNN model in detecting wandering episodes by achieving 73.5% accuracy which is 8.35% better than the best conventional neural network configuration.

Introduction: Hypertension is one of the commonest non-communicable diseases worldwide; it is the second most common cause of end-stage renal disease. Objective: To evaluate the renal dimensions and volume of essential hypertension patients in Abubakar Tafawa Balewa University Teaching Hospital, Bauchi and to compare the dimensions with that of apparently healthy volunteers. Materials and Methods: A total of two hundred and eleven individuals (comprising 121 females and 90 males) with essential hypertension attending an outpatient clinic in Abubakar Tafawa Balewa University Teaching Hospital Bauchi, and an equal number of healthy volunteers (comprising of 172 females and 49 males) were studied as controls. Both the healthy volunteers and the Hypertensive patients’ renal length, renal width, antero-posterior diameter, and parenchymal thickness were assessed. Statistical Package for Social Sciences (SPSS version 20.0) was used for data analysis. Results: Study show the mean renal length for hypertensive patients to be 9.1 ± 0.79 cm and 9.1 ± 0.73 cm, the mean renal width of 3.5 ± 0.48 cm and 3.8 ± 0.68 cm, and mean renal volume of 87.22 ± 19.58 cm3 and 95.08 ± 22.93 cm3 for the right and left kidneys respectively. Results equally show statistically significant difference in anteroposterior diameter (p, Uvod: Hipertenzija je jedna od najčešćih nezaraznih bolesti u svijetu; drugi je najčešći uzrok završnog stadija bubrežne bolesti. Cilj: Procijeniti dimenzije bubrega i bubrežni volumen kod hipertenzivnih bolesnika u Sveučilišnoj bolnici Abubakar Tafawa Balewa u gradu Bauchi i usporediti ih s dimenzijama kod naizgled zdravih ispitanika koji su se dobrovoljno javili za sudjelovanje u istraživanju. Materijali i metode: Uzorak se sastojao od dvjesto jedanaest ispitanika (121 žena i 90 muškaraca) koji boluju od esencijalne hipertenzije i na ambulantnom su liječenju u Sveučilišnoj bolnici Abubakar Tafawa Balewa u gradu Bauchi i jednakog broja zdravih ispitanika (172 žene i 49 muškaraca), koji su bili kontrolna skupina. Proučavana je duljina i širina bubrega, anteroposteriorni promjer i debljina parenhima kod ispitanika s hipertenzijom i kod zdravih ispitanika. Za analizu podataka primijenjen je statistički paket za društvene znanosti (SPSS verzija 20.0). Rezultati: Studija pokazuje da je prosječna dužina bubrega kod hipertenzivnih bolesnika 9,1 ± 0,79 cm i 9,1 ± 0,73 cm, prosječna bubrežna širina 3,5 ± 0,48 cm i 3,8 ± 0,68 cm, a prosječni bubrežni volumen 87,22 ± 19,58 cm3 i 95,08 ± 22,93 cm3 za desni i lijevi bubreg pojedinačno. Rezultati također pokazuju statistički značajnu razliku u anteroposteriornom promjeru (p < 0,05), debljini parenhima (p < 0,05) i bubrežnom volumenu (p < 0,05) između hipertenzivne skupine i kontrolne skupine za desni i lijevi bubreg. Zaključak: Ovom su studijom utvrđene osnovne bubrežne dimenzije kod hipertenzivnih bolesnika u populaciji grada Bauchi, glavnog grada Savezne države Bauchi u Nigeriji. Kod ispitanika koji boluju od hipertenzije ustanovljeno je smanjenje anteroposteriornog promjera bubrega, debljine parenhima i bubrežnog volumena u usporedbi s kontrolnom skupinom.

Background: Stroke or cerebrovascular disease is a clinical syndrome consisting of rapidly developing clinical signs of focal or global neurological deficits lasting more than 24 h or leading to death with no apparent cause other than a vascular origin. Study Aims: This study was aimed at evaluating pattern and clinical presentation of hemorrhagic stroke on brain Computed Tomography (CT) scan in Aminu Kano Teaching Hospital, Kano, Nigeria. Materials and Methods: This was a prospective study carried out between March 2018 and August 2018 on brain computed tomographic findings of 100 patients diagnosed with hemorrhagic stroke. Ethical approval to conduct the study was obtained from the Human Research and Ethics Committee of the Aminu Kano Teaching Hospital. Images were acquired using Prime Aquilion Toshiba Japan 2012 160 slice CT machine in the Department of Radiology. The patients' information and CT findings were recorded on the data capture sheet. Results: Headache was the most common clinical presentation seen in 72% of the patients, followed by dysphasia seen in 58%, followed by vomiting seen in 42%, and the least was convulsion seen in 28% of the patients. The most common site of hematoma was putamen with 54%, followed by thalamus 14%, and the least regions affected were parietal lobe, pons, and frontal lobes with 4% each. Conclusion: Headache was the most common clinical presentation of the patients with hemorrhagic stroke and the most common site of the hematoma was putamen.