Erich Schnell, Ph.D., DABR

Erich Schnell

Assistant Professor
Dept. Radiation Oncology

Adjunct Professor
Dept. Radiological Sciences

Email:  Erich-Schnell@ouhsc.edu

Education:
B.A., Physics
, Carleton College, Northfield, MN
M.S., Medical Physics, Duke University, Durham, NC
Ph.D., Medical Physics
, University of Oklahoma HSC, Oklahoma City, OK

Residency:
Medical Physics (Radiation Therapy), Department of Radiation Oncology, University of Oklahoma HSC, Oklahoma City, OK

Board Certifications:
American Board of Radiology – Therapeutic Medical Physics

Clinical/Research Interests:
Gynecologic High Dose Rate Brachytherapy treatment planning and dose calculation, Intensity modulated radiation therapy (IMRT) treatment planning, Intensity modulated proton therapy (IMPT) treatment planning.

Publications - Peer-Reviewed/Refereed

Schnell, E., Thompson, S., Ahmad, S., Herman, T. S., & De La Fuente Herman, T. (2019). Dosimetric considerations when utilizing Venezia, Capri, Rotte double tandem, and tandem and ring with interstitial needles for the treatment of gynecological cancers with high dose rate brachytherapy. Medical Dosimetry. In Press, Corrected Proof, Available online 14 May 2019. https://doi.org/10.1016/j.meddos.2019.04.001

Ahmed, M. F., Eller, S. A., Schnell, E., Ahmad, S., Akselrod, M. S., Hanson, O. D., & Yukihara, E. G. (2014). Development of a 2D dosimetry system based on the optically stimulated luminescence of Al2O3. Radiation Measurements, 71, 187-192.

Ahmed, M. F., Schnell, E., Ahmad, S., & Yukihara, E. G. (2016). Image reconstruction algorithm for optically stimulated luminescence 2D dosimetry using laser-scanned Al2O3: C and Al2O3: C, Mg films. Physics in Medicine & Biology, 61(20), 7484.

Ahmed, M. F., Shrestha, N., Schnell, E., Ahmad, S., Akselrod, M. S., & Yukihara, E. G. (2016). Characterization of Al2O3 optically stimulated luminescence films for 2D dosimetry using a 6 MV photon beam. Physics in Medicine & Biology, 61(21), 7551.

Ahmed, M. F., Shrestha, N., Ahmad, S., Schnell, E., Akselrod, M. S., & Yukihara, E. G. (2017). Demonstration of 2D dosimetry using Al2O3 optically stimulated luminescence films for therapeutic megavoltage x-ray and ion beams. Radiation Measurements106, 315-320.

De La Fuente Herman, T., Schnell, E., Young, J., Hildebrand, K., Algan, Ö., Syzek, E., Herman T. & Ahmad, S. (2013). Dosimetric comparison between IMRT delivery modes: Step-and-shoot, sliding window, and volumetric modulated arc therapy—for whole pelvis radiation therapy of intermediate-to-high risk prostate adenocarcinoma. Journal of Medical Physics, 38(4), 165-172.

Schnell, E., Samei, E., & Dobbins, J. T. (2012). Plate‐specific gain map correction for the improvement of detective quantum efficiency in computed radiography. Medical physics39(3), 1495-1504.

Published Abstracts:

Schnell, E., Ahmad, S., & De La Fuente Herman, T. (2016, June). Commissioning of a relative stopping power to Hounsfield unit calibration curve for a Mevion proton radiation treatment unit. In AIP Conference Proceedings (Vol. 1747, No. 1, 110004). AIP Publishing.

Schnell, E., Herman, T. D. L. F., Young, J., Hildebrand, K., Algan, O., Syzek, E., & Ahmad, S. (2012, October). Dosimetric comparison of volumetric modulated Arc therapy, step-and-shoot, and sliding window IMRT for prostate cancer. In AIP Conference Proceedings (Vol. 1494, No. 1, pp. 23-26). AIP.

Presentations:

Oral

E. Schnell, S. Thompson , S. Ahmad , T. Herman , T. De La Fuente Herman, Clinical Experience in Brachytherapy with the Venezia(TM) Advanced Gynecological Applicator, Oral presentation (SU-E-301-1) at the 61st Annual meeting of the American Association of Physicists in Medicine (AAPM), San Antonio, TX, July 14 – 18, 2019, Medical physics, Vol.45, No. 6, June 2019, page 2811

T. De La Fuente Herman, E. Schnell (Presenting Author), S. Thompson , S. Ahmad, Brachytherapy Plan Quality Evaluation of Three-Dimensional Imaging Based Inverse Planning as Compared to Two-Dimensional Imaging Standard Load Planning, Oral presentation (SU-K-209-2) at the 60th Annual meeting of the American Association of Physicists in Medicine (AAPM), Nashville, TN, July 29 – Aug 2, 2018, Medical physics, Vol.45, No. 6, June 2018, page 2744

E. Schnell, C. Ferreira, S. Ahmad, T. De La Fuente Herman, Verification of the Accuracy of a Relative Stopping Power (RSP) to Hounsfield Unit (HU) Calibration Curve Produced for Proton Treatment Planning Using EBT3-Gafchromic Film Dosimetry, Oral presentation (SU‐F‐T‐219) at the 58th Annual meeting of the American Association of Physicists in Medicine (AAPM), Washington, DC, July 31 – Aug 4, 2016, Medical physics, Vol.43, No. 6, June 2016, page 3512

Md Ahmed, E. Schnell, S. Ahmad, M. Akselrod, S. Brons, S. Greilich, J. Osinga, O. Jakel and E. Yukihara, Progress towards a 2D OSL dosimetry system using AL2o3:C films, Oral presentation (WE-AB-BRB-8) at the 57th Annual meeting of the American Association of Physicists in Medicine (AAPM), Anaheim, CA, July 12-16, 2015, Medical Physics, Vol.42, No. 6, June 2015, page 3651

Md F. Ahmed, S. Eller, E. Schnell, S. Ahmad, M. Akselrod, and E. Yukihara, Development of A 2D Dosimetry System Based on the Optically Stimulated Luminescence, Oral presentation at the 17th International Conference on Solid State Dosimetry, Recife, Brazil, September 22-27, 2013

E. Schnell, T. De La Fuente Herman, J. Young, K. Hildebrand, O. Algan, E. J. Syzek, T. S. Herman and S. Ahmad*, Dosimetric Comparison of Volumetric Modulated Arc Therapy (VMAT), Step and Shoot and Sliding Window IMRT for Prostate Cancer, Oral presentation at the XII Mexican Symposium on Medical Physics, Oaxaca, Mexico, March 16-18, 2012, Abstract Volume – Page 13

E. Schnell, J. Dobbins, Plate-Specific Gain Map Correction for the Improvement of DQE in Computed Radiography, Oral presentation (WE-E-201C-3) at the 52nd Annual meeting of the American Association of Physicists in Medicine (AAPM), Philadelphia, PA, July 18 – 22, 2010, Medical physics, Vol.37, No. 6, June 2010, page 3439

Poster:

E. Schnell, S. Thompson , S. Ahmad , T. Herman , T. De La Fuente Herman, Effect and Accuracy of Heterogeneity Corrected Dose Calculation in HDR Brachytherapy, Poster presentation (WE-C1030-GePD-F4-3) at the 61st Annual meeting of the American Association of Physicists in Medicine (AAPM), San Antonio, TX, July 14 – 18, 2019, Medical physics, Vol.45, No. 6, June 2019, page 2857

E. Schnell, S. Thompson , S. Ahmad , T. De La Fuente Herman, Benefits of MR Imaging On Volume Segmentation for HDR Brachytherapy, Poster presentation (SU-I-GPD-T-13) at the 60th Annual meeting of the American Association of Physicists in Medicine (AAPM), Nashville, TN, July 29 – Aug 2, 2018, Medical physics, Vol.45, No. 6 (16), June 2018, page 2734

E. Schnell, S. Thompson , S. Ahmad , T. De La Fuente Herman, Assessing the Improvement in Brachytherapy with the Usage of Multichannel Applicators, Poster presentation (SU-I-GPD-T-14) at the 60th Annual meeting of the American Association of Physicists in Medicine (AAPM), Nashville, TN, July 29 – Aug 2, 2018, Medical physics, Vol.45, No. 6 (16), June 2018, page 2734

E. Schnell, S. Ahmad , S. Thompson , O. Algan , C. Bogardus , T. Herman , T. De La Fuente Herman, A Comparison of VMAT and IMRT Treatment Plans for Four Clinical Sites at a Mixed-Machine Cancer Center, Poster Presentation (SU-I-GPD-T-377) at the 59th Annual meeting of the American Association of Physicists in Medicine (AAPM), Denver, CO, July 30 – Aug 3, 2017, Medical physics, Vol.44, No. 6, June 2017, page 2662

K. Harpool, H. Jin , E. Schnell , T. Herman , S. Ahmad , T. De La Fuente Herman, Dosimetric Evaluation of Conventional Proton Plans Against IMRT and VMAT Photon Plans for Pancreatic Cancer, Poster Presentation (SU-I-GPD-T-136) at the 59th Annual meeting of the American Association of Physicists in Medicine (AAPM), Denver, CO, July 30 – Aug 3, 2017, Medical physics, Vol.44, No. 6, June 2017, page 2656

K. Harpool, E. Schnell , T. Herman , S. Ahmad , T. De La Fuente Herman, Dose Calculation Variations in AAA and Acuros-XB for Pancreatic Cancer Treatment Planning, Poster Presentation (SU-I-GPD-T-427) at the 59th Annual meeting of the American Association of Physicists in Medicine (AAPM), Denver, CO, July 30 – Aug 3, 2017, Medical physics, Vol.44, No. 6, June 2017, page 2663

C. Ferreira, E. Schnell, S. Ahmad, T. De La Fuente Herman, Investigation of Gafchromic EBT3 Film Energy Dependence Using Proton, Photon, and Electron Beams, Poster Presentation (SU-F-I-70) at the 58th Annual meeting of the American Association of Physicists in Medicine (AAPM), Washington, DC, July 31 – Aug 4, 2016, Medical physics, Vol.43, No. 6 (16), June 2016, page 3403

K. Harpool, E. Schnell , T. Herman , S. Ahmad , T. De La Fuente Herman, Evaluation of Best Dosimetry Achievable with VMAT and IMRT Treatment Techniques Targeting Borderline Resectable Pancreatic Cancer, Poster Presentation (SU-F-T-395) at the 58th Annual meeting of the American Association of Physicists in Medicine (AAPM), Washington, DC, July 31 – Aug 4, 2016, Medical physics, Vol.43, No. 6 (16), June 2016, page 3554

E. Schnell, S. Ahmad and T. De La Fuente Herman, Characterization and Validation of CT Simulator Hounsfield Units (HU) to Relative stopping Power (RSP) Values for Proton Treatment Planning, Poster presentation (SU-E-T-161) at the 57th Annual meeting of the American Association of Physicists in Medicine (AAPM), Anaheim, CA, July 12-16, 2015, Medical Physics, Vol.42, No. 6, June 2015, page 3368-3369

M. Ahmed, S. Eller, E. Schnell, S. Ahmad, M. Akselrod, O. Hansen and E. Yukihara, Preliminary Results On a 2D Dosimetry System Based on the Optically Stimulated Luminescence of Al2O3, Poster presentation (SU-E-Campus-T-5) at the 56th Annual meeting of the American Association of Physicists in Medicine (AAPM), Austin, Texas, July 20 -24, 2014, Medical Physics, Vol.41, No. 6, June 2014, page 382-383

D. Johnson, Y. Chen, E. Schnell, S. Ahmad, A Monte Carlo Simulation Study of Photon Beam with Energies 6X, 10X, 6FFF, 10FFF from a TrueBeam Linear Accelerator, Poster presentation at the 55th Annual Meeting of the American Association of Physicists in Medicine (AAPM), Indiana, August 04 - 08, 2013, SU-E-T-257, Medical Physics, Vol. 40, No.6, June 2013, page 263

E. Schnell, T. De La Fuente Herman, J. Young, K. Hildebrand, O. Algan, E. Syzek, T. Herman and S. Ahmad, Dosimetric Comparison of Volumetric Modulated Arc Therapy, Step-And-Shoot, and Sliding Window IMRT for Prostate Cancer, Poster presentation at the 55th Annual Meeting of the American Association of Physicists in Medicine (AAPM), Indiana, August 04 - 08, 2013, SU-E-T-616, Medical Physics, Vol. 40, No.6, June 2013, page 347

D. Johnson, Y. Chen, E. Schnell and S. Ahmad, A Preliminary Monte Carlo Simulation Study of the TrueBeam Linear Accelerator, Poster presentation at the 54th Annual Meeting of the American Association of Physicists in Medicine (AAPM), July 29- Aug 02, 2012, SU-E-T-498, Medical Physics, Vol. 39, No.6, June 2012, page 3820

E. Schnell, T. De La Fuente Herman, O. Algan, L. Syzek, T. Herman, J. Young, K. Hildebrand and S. Ahmad, Dosimetric Comparison of Volumetric Modulated Arc Therapy (VMAT), Step and Shoot and Sliding Window IMRT for Prostate Cancer, Poster presentation at the 54th Annual Meeting of the American Association of Physicists in Medicine (AAPM), July 29- Aug 02, 2012, SU-E-T-577, Medical Physics, Vol. 39, No.6, June 2012, page 3838