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1. Ignition tuning for the National Ignition Campaign

Author

Landen O., Edwards J., Haan S.W., Lindl J.D., Boehly T.R., Bradley D.K., Callahan D.A., Celliers P.M., Dewald E.L., Dixit S., Doeppner T., Eggert J., Farley D., Frenje J.A., Glenn S., Glenzer S.H., Hamza A., Hammel B.A., Haynam C., LaFortune K., Hicks D.G., Hoffman N., Izumi N., Jones O.S., Kilkenny J.D., Kline J.L., Kyrala G.A., Mackinnon A.J., Milovich J., Moody J., Meezan N., Michel P., Munro D.H., Olson R.E., Ralph J., Robey H.F., Nikroo A., Regan S.P., Spears B.K., Suter L.J., Thomas C.A., Town R., Wilson D.C., MacGowan B.J., Atherton L.J., and Moses E.I.

Subjects
Physics, QC1-999
Abstract

The overall goal of the indirect-drive inertial confinement fusion [1] tuning campaigns [2] is to maximize the probability of ignition by experimentally correcting for likely residual uncertainties in the implosion and hohlraum physics [3] used in our radiation-hydrodynamic computational models, and by checking for and resolving unexpected shot-to-shot variability in performance [4]. This has been started successfully using a variety of surrogate capsules that set key laser, hohlraum and capsule parameters to maximize ignition capsule implosion velocity, while minimizing fuel adiabat, core shape asymmetry and ablator-fuel mix.

Published
2013
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3. When Shock Waves Collide

Author

Hartigan, P., Foster, J., Frank, A., Hansen, E., Yirak, K., Liao, A. S., Graham, P., Wilde, B., Blue, B., Martinez, D., Rosen, P., Farley, D., and Paguio, R.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

Supersonic outflows from objects as varied as stellar jets, massive stars and novae often exhibit multiple shock waves that overlap one another. When the intersection angle between two shock waves exceeds a critical value, the system reconfigures its geometry to create a normal shock known as a Mach stem where the shocks meet. Mach stems are important for interpreting emission-line images of shocked gas because a normal shock produces higher postshock temperatures and therefore a higher-excitation spectrum than an oblique one does. In this paper we summarize the results of a series of numerical simulations and laboratory experiments designed to quantify how Mach stems behave in supersonic plasmas that are the norm in astrophysical flows. The experiments test analytical predictions for critical angles where Mach stems should form, and quantify how Mach stems grow and decay as intersection angles between the incident shock and a surface change. While small Mach stems are destroyed by surface irregularities and subcritical angles, larger ones persist in these situations, and can regrow if the intersection angle changes to become more favorable. The experimental and numerical results show that although Mach stems occur only over a limited range of intersection angles and size scales, within these ranges they are relatively robust, and hence are a viable explanation for variable bright knots observed in HST images at the intersections of some bow shocks in stellar jets., Comment: 2016, accepted by the Astrophysical Journal

Published
2016
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9. Quality of Life after Hernia Surgery

Author

LeBlanc, K., Misra, D., Zacherl, J., Petrella, G., Khan, F., Negro, P., Roll, S., Hope, W., Campanelli, G., Van Lander, A., Muysoms, F., Kyle-Leinhase, I., Ceulemans, R., Pletinckx, P., Jacobs, I., Michiels, M., Berrevoet, F., Blair, L., Huntington, C., Cox, T., Ross, S., Prasad, T., Lincourt, A., Matthews, B., Kercher, K., Heniford, B. T., Augenstein, V., El Khatib, M., Pandian, T. K., Abdelsattar, J., Farley, D., Halmerbauer, G., Arthofer, K., Ausch, C., Ehrenmüller, M., Hangl, C., Hubatka, K., Kamptner, N., Königswieser, T., Rieger, R., Magnusson, J., Nygren, J., Thorell, A., Huang, C., Tai, F. C., Chou, T. H., Huang, C. S., Latham, L., Cadinu, I., Livraghi, L., Berselli, M., Agrusti, S., Borghi, F., Ambrosoli, A., Crespi, A., Pagano, G., Galvanin, J., Raveglia, V., Cocozza, E., Olory-Togbe, J., Hounnou, G. M., Dossou, F., Gbessi, D. G., Idossou, V., Gnangnon, F., and Elegbede, A.

Published
2015
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19. Optimization of a laser plasma-based x-ray source according to WDM absorption spectroscopy requirements

Author

Martynenko, A. S., primary, Pikuz, S. A., additional, Skobelev, I. Yu., additional, Ryazantsev, S. N., additional, Baird, C. D., additional, Booth, N., additional, Döhl, L. N. K., additional, Durey, P., additional, Faenov, A. Ya., additional, Farley, D., additional, Kodama, R., additional, Lancaster, K., additional, McKenna, P., additional, Murphy, C. D., additional, Spindloe, C., additional, Pikuz, T. A., additional, and Woolsey, N., additional

Published
2021
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21. X-ray spectroscopy validation of ionization potential depression models in dense plasma created by petawatt laser pulses

Author

Martynenko, A.S., primary, Pikuz, S.A., additional, Ryazantsev, S.N., additional, Skobelev, I.Yu., additional, Golovkin, I.E., additional, Baird, C., additional, Booth, N., additional, Doehl, L., additional, Durey, P., additional, Faenov, A. Ya., additional, Farley, D., additional, Kodama, R., additional, Lancaster, K., additional, McKenna, P., additional, Murphy, C. D., additional, Spindloe, C., additional, Pikuz, T. A., additional, and Woolsey, N., additional

Published
2020
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22. Effect of plastic coating on the density of plasma formed in Si foil targets irradiated by ultra-high-contrast relativistic laser pulses

Author

Martynenko, A. S., primary, Pikuz, S. A., additional, Skobelev, I. Yu., additional, Ryazantsev, S. N., additional, Baird, C., additional, Booth, N., additional, Doehl, L., additional, Durey, P., additional, Faenov, A. Ya., additional, Farley, D., additional, Kodama, R., additional, Lancaster, K., additional, McKenna, P., additional, Murphy, C. D., additional, Spindloe, C., additional, Pikuz, T. A., additional, and Woolsey, N., additional

Published
2020
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27. An optically multiplexed single-shot time-resolved probe of laser-plasma dynamics

Author

Davidson, Z. E., Gonzalez Izquierdo, B., Higginson, A., Lancaster, K. L., Williamson, S. D. R., King, M., Farley, D., Neely, D., McKenna, P., and Gray, R. J.

Subjects
QC350
Abstract

We introduce a new approach to temporally resolve ultrafast micron-scale processes via the use of a multi-channel optical probe. We demonstrate that this technique enables highly precise time-resolved, two-dimensional spatial imaging of intense laser pulse propagation dynamics, plasma formation and laser beam filamentation within a single pulse over four distinct time frames. The design, development and optimization of the optical probe system is presented, as are representative experimental results from the first implementation of the multi-channel probe with a high-power laser pulse interaction with a helium gas jet target.

Published
2019

28. 19th Sir peter freyer memorial lecture and surgical symposium 16th and 17th September 1994: Session I General (Parallel with Oncology / Immunology)

Author

McEvoy, D. A., Connolly, B., Donohue, V., O’Halpin, D., Rowley, H., O’Dywer, T. P., Timon, C., McKeever, J. A., Stokes, M. A., Bannigan, J. G., Early, M. J., Baker, D. M., Nguyen, Van-Tam, Bush, D., Jones, J., Bourke, J. B., Cross, K. S., Durkan, G., Stokes, M., Carroll, T., Gorey, T., O’Malley, K., Mulcahy, D., McCormack, D., McElwain, J., Natin, S. C., Walsh, T. N., Hennessy, T. P. J., Carson, K., Page, R., Blunnie, W., Moriarty, D. C., Watson, R. W. G., Bouchier-Hayes, D. M., Abdih, H., Kelly, C. J., Barry, M., Burke, P., Tanner, A., Bouchier-Hayes, D. J., O’Sullivan, T., Horgan, A. F., Chin, D. H. L., Mannick, J. A., Rodrick, M. L., Finnegan, N., O’Sullivan, S. T., Wolf, S. F., Barry, M. C., Condron, C., Watson, R. G. K., Evans, J. D., Maxwell-Armstrong, C. A., Barry, M. K., Singh, K. K., Ralston, P., Auld, C. D., Henderson, M., McCormick, J., Walls, A. D. F., Keogh, I., Kerin, M., O’Hanlon, D., Walsh, S., Kent, P., Callaghan, J., Given, H. F., Madhavan, P., Golden, B., Khan, F., Murphy, E., Couse, N., Burke, G., Delaney, P. V., McLoughlin, R., Kenny, P., O’Hanlon, D ., Grimes, H., Reid, S., Neary, P., Nassralla, M., Neelamekam, T. K., Horgan, P., Traynor, O., Horgan, P. G., Hyland, J., O’Hanlon, D. M., O’Boyle, C., Duffy, M. J., McDermott, E. W. M., Reilly, D., Fennelly, J. J., O’Higgins, N. J., McNamara, A., Mullett, H., O’Riordan, D., McDermott, E., Sharp, M., O’Higgins, N., Murphy, M., Little, M., Maher, D., Khalid, A., McCarthy, P., Given, I. F., Bolger, C., Phillips, J. P., Gilligan, C., Zareb, S., Roake, C., O’Riordain, D. S., Farley, D., Grant, C., van Heerden, J., O’Brien, D. P., Flynn, M. J., Keane, F. B. V., Sweeney, B., O’Riordain, D., Curran, A. J., Joyce, W., Smith, D., Gallagher, H., Walsh, M. A., Bouchier-Hayes, D., Phillips, J., O’Brien, T., Yusuf, S. W., Perkins, A. C., Frier, M., Wenham, P. W., Hopkinson, B. R., Makin, G. S., Hind, R., Yusuf, W., Whitaker, S. C., Hind, R. E., Chuter, T. A. M., Durkan, G. C., Grenell, M. J., Regan, M. C., Gorey, T. F., Castineira, C. F., Sheehan, S. J., Wali, M., Colgan, M. P., Moore, D. J., Shanik, G. D., McGreal, G., Kelly, J., Hehir, D., Brady, M. P., Sibbering, D. M., Holland, P. A. M., Wilson, A. R. M., Blarney, R. W., Khurrum Baig, M., Mulligan, N., Farrell, B., Cunningham, F. O., Magd-Eldin, M., Keeling, P., Gul, Y. A., Yeo, S. W., Khan, U. D., Lennon, F., Shine, M. F., Kalidasan, V., Fulena, O., Guiney, E. J., Fitzgerald, R. J., Corbally, M., Wood, A. E., Horgan, P. G., O’Sullivan, S. T., Reardon, C. M., McGreal, G. T., Hehir, D. J., O’Donnell, J. A., Brady, M. P., Kirwan, W. O., Mahomed, A. A., Keshgar, A., Surna, R., Corbally, M. T., O’Rourke, S., Beckingham, I., Bishop, M. C., Blarney, R. W., Husain, J., Hegarty, N., Calleary, J., Rafi, I., Gilmore, M., Saleem, S. M., Singh, H. P., Aherne, T., Redmond, H. P., McCarthy, J., Mulcahy, D. M., Nicholson, P., Harrington, P., Sharif, T., Smyth, H., Fenelon, G., Pegum, J., Corrigan, J., Jenkinson, A., El-Magbri, A. A., Gussail, M. A., Smew, M. A., Martin, A., Bennett, M., Farrell, M. A., Curran, C., Kerin, M. J., Caldwell, M. T. P., Byrne, P. J., Chin, D. H. L., Rodrick, M. L., Mannick, J. A., Duggan, S., Jones, A. S., Field, J. K., O’Hanlon, D. M., Monaghan, D., Barry, M. C., Condren, C., Redmond, H. P., Crerand, S., Kavanagh, M., Dervan, P., Hurson, B., Aiyaswami, K., Hurson, B., Evoy, D., Walsh, M., Garrihy, B., Kaf Al-Ghazal, S., O’Donoghue, J., McCann, J., Wagstaff, S., Conroy, C., Dolan, M., Smith, L., Klenerman, L., Noel, J., Waide, V., O’Sullivan, D., Biyani, C., Powell, C., Heal, M., Surana, R., Khan, A., Fitzgerald, R. J., Lynch, T., Sami, T., Baluch, W., Hickey, D., Donovan, M., McLean, P., Murphy, D., Johnston, S., Rastogi, V., Doyle, J., Flynn, J. R., Kelly, P., Neligan, M. F., MacGowan, S. W., Sharkey, O., Wood, A. E., Bhojwani, A., Lynch, T., Barry Walsh, C., Kay, E., Walsh, M., Milbum, C., McLean, P., Hickey, D., Murphy, D., Leader, M., McDermott, J., Moriarty, D., Caushaj, P., Fitzpatrick, J. M., Byrne, D., Hederman, W. P., O’Malley, N. K., Chan, K. H., Fleming, P., O’Sullivan, G. C., Horgan, P. G., Aizaz, K., O’Donnell, A. F., Luke, D. A., McGovern, E. M., Patil, N., Gormley, P., and McCarthy, P. M.

Published
1994
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30. Features of the generation of fast particles from microstructured targets irradiated by high intensity, picosecond laser pulses

Author

Sedov, M.V., primary, Faenov, A.Ya., additional, Andreev, A.A., additional, Skobelev, I.Yu., additional, Ryazantsev, S.N., additional, Pikuz, T.A., additional, Durey, P., additional, Doehl, L., additional, Farley, D., additional, Baird, C.D., additional, Lancaster, K.L., additional, Murphy, C.D., additional, Booth, N., additional, Spindloe, C., additional, Platonov, K.Yu., additional, McKenna, P., additional, Kodama, R., additional, Woolsey, N., additional, and Pikuz, S.A., additional

Published
2019
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35. FY11 LLNL OMEGA Experimental Programs

Author

Tommasini, R., primary, Fournier, K., additional, Celliers, P., additional, Comley, A., additional, Farley, D., additional, Hawreliak, J., additional, Heeter, B., additional, Kritcher, A., additional, Lazicki, A., additional, Ma, T., additional, Maddox, B., additional, May, M., additional, McNaney, J., additional, Pak, A., additional, Park, H., additional, Ping, Y., additional, Ross, J., additional, Rygg, R., additional, Smalyuk, V., additional, Smith, R., additional, Collins, G., additional, Hsing, W., additional, and Landen, O., additional

Published
2011
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36. VHF radar and rocket observations of equatorial spread F on Kwajalein

Author

Hysell, D. L, Kelley, M. C, Swartz, W. E, and Farley, D. T

Subjects
Meteorology And Climatology
Abstract

VHF radar data from the Summer 1990 Equatorial Spread F campaign on Kwajalein are presented. The Cornell 50 MHz portable radar interferometer (CUPRI) operated concurrently with the Altair UHF incoherent scatter radar throughout July and August and supported two sounding rocket flights on July 30 and August 2. This experiment provided the first opportunity to simultaneously diagnose equatorial spread F using the three prime experimental techniques: VHF/UHF coherent scatter, incoherent scatter, and in situ probe measurements of electric field and density fluctuations. The intensity of the coherent echoes observed was consistent with typical Jicamarca spread F observations, but chains of periodic, large-scale plasma upwellings were observed more often and for much longer durations on Kwajalein than have been seen over Peru. CUPRI also measured Doppler frequencies in one upwelling corresponding to 1200-m/s plasma drift velocities. This measurement agrees with recent observations of supersonic drift rates at the magnetic equator by spacecraft. Near the most active localized plasma upwellings, interferometer data reveal that the zonal drift rate of plasma irregularities can vary sharply in space, as one would expect for two-dimensional incompressible flow. We introduce a semiempirical model of the three-dimensional spectrum of F region irregularities that is consistent with the one-dimensional spectra of density fluctuations observed by sounding rockets and with the axial ratio of irregularities determined recently. Normalized to data from one of the rocket flights on Kwajalein, the model predicts the 3-m scattering cross-section measured by CUPRI to within a few decibels.

Published
1994
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37. Observations of 3-m auroral irregularities during the ERRRIS campaigns

Author

Sahr, J. D, Farley, D. T, Swartz, W. E, Providakes, J. F, and Pfaff, R. F

Subjects
Geophysics
Abstract

In the late winter of 1988 and 1989, three NASA sounding rockets were flown through the auroral electrojet from ESRANGE (Sweden) as part of the E-region Rocket-Radar Instability Study (ERRRIS). Many ground-based instruments supported these flights, including the EISCAT, STARE, and CUPRI radars, as well as all-sky cameras, riometers, and magnetometers. In this paper the observations of the Cornell University Portable Radar Interferometer (CUPRI), which detected coherent backscatter from 3-m irregularities in the auroral E-region are summarized. Twenty hours of power spectra and interferometry data are available, and, during the 1989 campaign, three weeks of nearly continuous Range-Time-Intensity (RTI) and first moment data were recorded.

Published
1992
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38. The E-region Rocket/Radar Instability Study (ERRRIS) - Scientific objectives and campaign overview

Author

Pfaff, R. F, Sahr, J, Providakes, J. F, Swartz, W. E, Farley, D. T, Kintner, P. M, Haggstrom, I, Hedberg, A, Opgenoorth, H, and Holmgren, G

Subjects
Geophysics
Abstract

The plasma instabilities in the low-attitude auroral ionosphere and the sources of free energy that drive these waves have been examined in detail in the framework of the ERRRIS project. Independent sets of experiments were carried out on board three NASA sounding rockets which were flown in conjunction with radar backscatter measurements from Esrange, Sweden, in 1988 and 1989. The backscatter measurements were taken by the 50 MHz CUPRI system for determining the launch conditions. The Eiscat incoherent scatter radar was used to take plasma drift, density, and temperature measurements on board two of the flown rockets. STARE observations of 1 m backscatter echoes were also made. The STARE velocity fields were in agreement with the Eiscat and in situ measured electric fields. Both CUPRI and STARE observed a very dynamic and changing auroral ionosphere over Esrange. It is concluded that the ERRRIS experiments provided valuable data on plasma instabilities in the auroral electrojet, including detailed in situ measurements of the two-stream wave spectrum and phase velocities.

Published
1992
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40. X-ray absorption spectroscopy study of energy transport in foil targets heated by petawatt laser pulses

Author

Skobelev, I. Y., primary, Ryazantsev, S. N., additional, Arich, D. D., additional, Bratchenko, P. S., additional, Faenov, A. Y., additional, Pikuz, T. A., additional, Durey, P., additional, Doehl, L., additional, Farley, D., additional, Baird, C. D., additional, Lancaster, K. L., additional, Murphy, C. D., additional, Booth, N., additional, Spindloe, C., additional, McKenna, P., additional, Hansen, S. B., additional, Colgan, J., additional, Kodama, R., additional, Woolsey, N., additional, and Pikuz, S. A., additional

Published
2018
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44. In-depth study of intra-Stark spectroscopy in the x-ray range in relativistic laser–plasma interactions

Author

Oks, E, primary, Dalimier, E, additional, Faenov, A Ya, additional, Angelo, P, additional, Pikuz, S A, additional, Pikuz, T A, additional, Skobelev, I Yu, additional, Ryazanzev, S N, additional, Durey, P, additional, Doehl, L, additional, Farley, D, additional, Baird, C, additional, Lancaster, K L, additional, Murphy, C D, additional, Booth, N, additional, Spindloe, C, additional, McKenna, P, additional, Neumann, N, additional, Roth, M, additional, Kodama, R, additional, and Woolsey, N, additional

Published
2017
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45. A Novel Delivery of Accelerated Partial Breast Irradiation Using Intraoperative Brachytherapy Device Placement and Completion of Breast Conservation Therapy Within 10 Days

Author

Park, S.S., primary, Jakub, J., additional, Mutter, R.W., additional, Boughey, J.C., additional, Corbin, K.S., additional, Degnim, A., additional, Stish, B.J., additional, Sukov, W., additional, Racz, J., additional, Merrell, K.W., additional, Farley, D., additional, Furutani, K.M., additional, Whitaker, T.J., additional, and Hieken, T.J., additional

Published
2017
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46. Enhancing titres of therapeutic viral vectors using the transgene repression in vector production (TRiP) system

Author

Maunder, H. E., primary, Wright, J., additional, Kolli, B. R., additional, Vieira, C. R., additional, Mkandawire, T. T., additional, Tatoris, S., additional, Kennedy, V., additional, Iqball, S., additional, Devarajan, G., additional, Ellis, S., additional, Lad, Y., additional, Clarkson, N. G., additional, Mitrophanous, K. A., additional, and Farley, D. C., additional

Published
2017
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47. Applications and results of X-ray spectroscopy in implosion experiments on the National Ignition Facility

Author

Epstein, R., primary, Regan, S. P., additional, Hammel, B. A., additional, Suter, L. J., additional, Scott, H. A., additional, Barrios, M. A., additional, Bradley, D. K., additional, Callahan, D. A., additional, Cerjan, C., additional, Collins, G. W., additional, Dixit, S. N., additional, Döppner, T., additional, Edwards, M. J., additional, Farley, D. R., additional, Fournier, K. B., additional, Glenn, S., additional, Glenzer, S. H., additional, Golovkin, I. E., additional, Hamza, A., additional, Hicks, D. G., additional, Izumi, N., additional, Jones, O. S., additional, Key, M. H., additional, Kilkenny, J. D., additional, Kline, J. L., additional, Kyrala, G. A., additional, Landen, O. L., additional, Ma, T., additional, MacFarlane, J. J., additional, Mackinnon, A. J., additional, Mancini, R. C., additional, McCrory, R. L., additional, Meyerhofer, D. D., additional, Meezan, N. B., additional, Nikroo, A., additional, Park, H.-S., additional, Patel, P. K., additional, Ralph, J. E., additional, Remington, B. A., additional, Sangster, T. C., additional, Smalyuk, V. A., additional, Springer, P. T., additional, Town, R. P. J., additional, and Tucker, J. L., additional

Published
2017
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48. Surgical trends of groin hernia repairs performed for recurrence in medicare patients.

Author

Murphy, B. L., Zhang, J., Ubl, D. S., Habermann, E. B., Farley, D. R., and Paley, K.

Subjects
HERNIA, GROIN, GENERALIZED estimating equations, MEDICARE, GROIN surgery, HERNIA surgery, DATABASES, RESEARCH, RESEARCH methodology, RETROSPECTIVE studies, EVALUATION research, MEDICAL cooperation, DISEASE relapse, COMPARATIVE studies, REOPERATION, INGUINAL hernia
Abstract

Background: The recurrence rate after groin hernia repair (GHR) has been estimated to be between 1-10% in adult patients. Neither national rates nor trends in recurrence over time have been reliably established for Medicare patients in the USA.Materials: We evaluated patients undergoing GHR (inguinal = IHR; femoral = FHR) from 2011 to 2014 from the Medicare Provider Analysis and Review database. Patients were identified using ICD-9 diagnosis and ICD-9 and CPT procedure codes, stratified both by primary vs. recurrent hernia repair and by sex. One-tailed Cochran-Armitage tests evaluated trends over time and a generalized estimating equation model estimated factors associated with recurrent IHR or FHR.Results: We identified 407,717 patients (87.0%, ≥ 65 years) who underwent an IHR and 11,578 (91.0%, ≥ 65 years) who underwent a FHR. The proportion of IHRs for recurrence decreased statistically from 14.3% in 2011 to 13.9% in 2014 (p < 0.01) in males and was increased, but not statistically so (7.0-7.4%) in females (p = 0.08). The proportion of FHRs for recurrence was decreased, but not statistically so (16.3-14.8%, p = 0.29) in males and increased in females (5.3-6.3%, p = 0.02). On multivariable analysis, males were more than twice as likely as females to undergo recurrent repair (IHR or FHR, both p < 0.01).Conclusions: Within the Medicare population, recurrence rates after groin hernia repairs were found to be higher than previously reported but have remained clinically stable over time. Establishing and reducing this rate is important for patient outcomes and expectations. [ABSTRACT FROM AUTHOR]

Published
2019
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50. TEP and Lichtenstein anatomy: does simulation accelerate acquisition among interns?

Author

Farley, D., Rowse, P., Ruparel, R., Abdelsattar, J., AlJamal, Y., Dy, B., Rowse, P G, Ruparel, R K, Abdelsattar, J M, AlJamal, Y N, Dy, B M, and Farley, D R

Subjects
*GROIN, *INGUINAL hernia, *SIMULATION methods & models, *SURGICAL education, *INTERNS, *ANATOMY
Abstract

Purpose: The anatomy of the inguinal region is notoriously challenging to master. We sought to teach open inguinal hernia (OIH) and totally extraperitoneal (TEP) anatomy with simulation models among general surgery (GS) interns.Methods: Low-fidelity OIH and TEP models were constructed out of cardboard, plastic bins, fabric, and yarn. GS interns (n = 30) participated in a 3-h hernia session including a pretest, anatomy lecture, simulated OIH and TEP hernia repair, and posttest. Pre- and posttest scores were based on a difficult 30-point exam which included didactic questions (10 points), drawing relevant TEP (10 points), and OIH (10 points) anatomy. Participants were surveyed following the session.Results: Median pretest scores were 13 % (range 0-60 %). Median posttest scores improved to 47 % (range 20-93 %, p < 0.001). Median number of structures drawn in the TEP image improved from 2 (range 0-14) to 11 (range 1-21, p < 0.001). Median number of structures drawn in the OIH image improved from 3 (range 0-15) to 7 (range 1-19, p < 0.001). 67 % (12/18) demonstrated improvement in knowledge of abdominal wall layers. 23 % (7/30) knew the triangles of pain/doom on the pretest vs. 77 % (23/30) on the posttest. Mean Likert scores favored session enjoyability (4.5), not a waste of training time (4.4), and improved understanding of OIH and TEP anatomy (4.4, 4.2).Conclusions: Low-fidelity simulators can be used to teach and assess knowledge of TEP and OIH anatomy. While enjoyable and useful, one 3-h session does not create master hernia surgeons or expert anatomists out of novice trainees. [ABSTRACT FROM AUTHOR]

Published
2016
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