The 8th Annual Imaging Research Symposium
Date
Symposium Program |
|
| 12:30 pm | Registration Cole Hall |
| 1:00-1:05 pm | Opening Remarks Sharmila Majumdar, PhD, Professor and Vice Chair for Research, Department of Radiology and Biomedical Imaging |
| 1:05-2:45 pm |
Selected Oral Presentations (Session I) |
|
1:05-1:15 pm |
Noninvasive Assessment of Renal Tumor Aggressiveness using Hyperpolarized 13C MR |
| 1:15-1:25 pm |
Chronic Cigarette Smoking in Alcohol Dependence: Associations with Cortical Thickness and N-acetylaspartate Levels in the Brain Reward System |
| 1:25-1:35 pm | Abnormal Joint Kinematics are Associated With Early Cartilage Degeneration Measured by MR T1rho in ACL Reconstructed Knees
Kothari A, Souza R, Wu S, Kumar D, Ma CB, Li X |
| 1:35-1:45 pm |
Development of an Early Biomarker of MGMT Activity and Response to Temozolomide Treatment Using Hyperpolarized 13C MR Metabolic Imaging |
| 1:45-1:55 pm |
Echo Planar Chemical Shift Imaging of Hyperpolarized 13C-Pyruvate and 13C-Lactate |
| 1:55-2:05 pm |
Three Component Molecular Breast Composition Predicts Lesion Type More Strongly than BI-RADS Lesion Classifiers |
| 2:05-2:15 pm |
Natural Course of Brain Atrophy Acceleration with Advancing Cognitive Decline from Normal Aging to Alzheimer’s Disease |
| 2:15-2:25 pm |
Diffusion Weighted-MRI of White Matter Injury Produced by Ethidium Bromide and Cervical Spinal Cord Contusion Injuries in the Rat |
| 2:25-2:55 pm | Coffee Break |
| 2:55-4:15 pm | Oral Presentations (Session II)
Moderators: Valerie Cardenas Nicolson, PhD and Jane Wang, MD |
| 2:55-3:05 pm | Longitudinal Evaluation of MPIO-labeled Stem Cell Tropism and Biodistribution in GBM Models using High Resolution and Contrast Enhanced MR Imaging at 14.1Tesla Chaumeil M, Gini B, Yang H, Iwanami A, Subramanian S, Ozawa T, Read EJ, Pieper RO, Mischel P, James CD, Ronen SM |
| 3:05-3:15 pm |
Age- and Gender-Related Differences in Cortical Geometry and Microstructure in the Distal Radius and Tibia: Improved Sensitivity by Regional Analysis |
| 3:15-3:25 pm |
Evaluation of Anatomy and Flow in Hemodialysis Fistulas |
| 3:25-3:35 pm |
High Resolution Diffusion MRI Characterizes Tumor Stromal Boundaries |
| 3:35-3:45 pm |
Super Resolution Track Density Imaging: Initial Clinical Study in Human Brain Tumors |
| 3:45-3:55 pm |
Mapping the Structural Connectivity Network in the Baby Brain Using Diffusion MRI |
| 3:55-4:05 pm |
Coronary Flow Reserve Measurement Obtained Conventional Dual-Head SPECT with 4D Spatiotemporal Iterative Reconstructions—A Clinical Study |
| 4:05-4:15 pm |
Hippocampal Volumes are Reduced After Mild Traumatic Brain Injury, but do not Correlate with Verbal Memory Function |
| 4:30-6:00 pm |
Poster Session, Award Presentations, and Catered Reception |
| 4:45 pm | Presentation of the Hasegawa Award
Ronald L. Arenson, MD, Professor and Chair, Department of Radiology and Biomedical Imaging |
| 5:45 pm |
Podium and Poster Presentation Awards and Closing Comments |
Poster Presentation List
| # | First Author | Abstract Title |
| 1 | Llewellyn Jalbert |
Magnetic resonance of 2-Hydroxyglutarate (2HG) in IDH1-mutant low-grade gliomas |
| 2 | Petter Dyverfeldt | Turbulence Intensity Mapping in Aortic Dilatation: Initial Experience |
| 3 | Simon Hu |
In Vivo Measurement of Normal Rat Intracellular Pyruvate and Lactate Levels after Injection of Hyperpolarized [1-13C]Alanine |
| 4 | Yinan Liu | Cerebral Blood Perfusion Dynamics in Alzheimer’s Disease and Mild Cognitive Impairment Using Four Phase Arterial Spin Labeling MRI model |
| 5 | Michael Lu | Importing Outside Imaging to PACS Reduces Repeat Imaging |
| 6 | Adam Elkhaled | Metabolic Characterization of Malignant Gliomas |
| 7 | Joseph Wilson | DXA-based Body Volume Measurement for Four-compartment Body Composition |
| 8 | Eugene Ozhinsky | Automated 3D MRSI Acquisition with Whole Brain Slice Selection and Outer-Volume Suppression |
| 9 | Peder Larson | Metabolic Activity Decomposition with Stimulated-echoes and Hyperpolarized substrates |
| 10 | Vanja Varenika | Contrast-enhanced CT Quantification of Hepatic Fibrosis |
| 11 | Michael Ewers | CSF Biomarker and PIB-PET Derived Beta-Amyloid Signature Predicts Metabolic, Grey Matter and Cognitive Changes in Non-Demented Subjects |
| 12 | David Pennington | Morphology Of The Brain Reward System: Relationship To Relapse And Extended Abstinence |
| 13 | Valerie Cardenas |
Co-analysis of Macro- and Microstructural Brain Alterations in Mild Cognitive Impairment using Anatomical and Diffusion MRI |
| 14 | Vitaliy Rayz | Simulation of Surgical Interventions Based on MRA and CTA |
| 15 | Thomas Hope | Evaluation of Gadolinium Accumulation and Fibrosis within the Liver after the Administration of Gadoxetate In a Rat Model of Cirrhosis |
| 16 | Michael Lu | Asymmetric Ascending Aortic Dilation with Bicuspid Aortic Valve |
| 17 | John-Paul Yu | Incidental Aortic Valve Calcification on CT Scans: Significance for Bicuspid and Tricuspid Valve Diesease |
| 18 | Ania Azziz | Quantitative and Qualitative Assessment of Breast MRI Background Enhancement in a Non-Cancer Patient Population |
| 19 | Matthew Bucknor | Extraspinal Sciatica in the Setting of Proximal Hamstring Injury: An Under Diagnosed Clinical Syndrome |
| 20 | Timothy Gilleran | The Effects of Gait Biomechanics on Knee Cartilage Biochemistry |
| 21 | Michael Pun | Solvent Exchange Fluorination Obviates [18F]Fluoride Ion Resolubilization |
| 22 | Anderson Mon |
A Mathematical Formula for the Prediction of Brain Tissue Volume Changes: Volume Increases in Abstinent Alcoholics and Decreases in Alzheimer’s Disease |
| 23 | Misung Han | Bilateral Hip MRI using Dual-Band Excitation with Slab-Phase Modulation |
| 24 | Wei Bian |
Achieving Heightened Contrast in Magnitude, Phase, and Susceptibility-Weighted Brain Images at 7T |
| 25 | Yong Pang | MR Experiment Validation of Parallel Traveling-Wave with Quadrature Patch Antenna Array |
| 26 | Subramaniam Sukumar | Fast 3D Imaging of Hyperpolarized 13C Biomarkers in-vivo at 14.1T |
| 27 | Alexander Dillon |
The Effect of Femoroacetabular Impingement on Hip Function Assessed By 3D Motion Analysis |
| 28 | Robert Bok | Multi-Parametric Analysis of Prostatic Neoplasia and Its Response to Therapy in a Targeted PTEN-Knockout Mouse Using Diffusion & Hyperpolarized 13C MRSI |
| 29 | Deepak Kumar | Walking Mechanics, Cartilage Morphology and Composition in Young Healthy Subjects with Knee Varus |
| 30 | Ye Li | Investigation of Multichannel Phased Array Configurations for Fetal MR Imaging at 1.5T |
| 31 | Christopher Drake | Novel Antibody-Based Probes for the Detection and Study of Pre-Malignant Breast Cancer Cells |
| 32 | Willy Tjong | Longitudinal HR-PQCT Assessment of The Influence of Reduced Weight Bearing on Bone Structure And Mechanics |
| 33 | Samuel Wu | Knee Cartilage Relaxation Times at 3 Months Following Menisectomy Using Chemical Shift-Based Water/Fat Separation |
| 34 | Dimitrios Karampinos |
Assessment of the Regional Distribution of Skeletal Muscle Adipose Tissue In Type 2 Diabetes |
| 35 | Cornelius von Morze | Quantitative Super-Resolution Track Density Imaging for Routine Clinical Use |
| 36 | Keerthi Shet | Quantitative and Histo-pathological Analysis of Osteo-arthritic Cartilage using MRI, HRMAS
Spectroscopy and Immuno-histochemistry |
| 37 | Vickie Zhang | Hyperpolarized 13C Biomarkers of Response to Prostate Cancer Radiation Therapy |
| 38 | Sangtaek Kim | Multi-Material Decomposition using Low-Current X-Ray and a Photon-Counting CZT Detector |
| 39 | Peter Shin | Multi-coil Sensitivity Estimation using Subspace Method |
| 40 | Joseph Schooler | Texture Analysis of T1ρ Relaxation Times in Knee Osteoarthritis |
| 41 | Miguel Cabarrus | What is normal? Critical description of pancreatic head morphology at CT imaging |
| 42 | Sai Duriseti |
Imaging the Urokinase Plasminogen Activator Receptor in Preclinical Models of Triple-Negative Breast Cancer Using Recombinant Human Antibodies |
| 43 | Christine Leon |
Investigating Cancer Kinetic Biomarkers Using Metabolic Activity Decomposition with Stimulated-Echo Acquisition Hyperpolarized Carbon-13 MR |
| 44 | Alessia Lodi | Treatment with the MEK Inhibitor U0126 in Prostate and Breast Cancer Cell Lines Consistently Increased Glycolytic Rates but not Rates of Hyperpolarized Pyruvate to Lactate Conversion |
| 45 | Michael Page | Ultra-sensitive, Non-invasive Quantification of Blood Clot Formation In Vivo |
| 46 | Gabriel Acevedo-Bolton | Rapid-Prototyping of patient specific flow models: methods and applications |
| 47 | Marcel Brus-Ramer | Idiopathic Thoracic Spinal Cord Herniation: Retrospective Analysis Supporting a Mechanism of Dural Injury and Subsequent Tamponade |
| 48 | Jason Bowen | Cardiac and Torso Phantom Measurements Acquired Under Extremely Low-Count Conditions with Highly Sensitive Multipinhole Collimators |
| 49 | Ania Azziz | Breast MRI Background Enhancement in a Non-Cancer Patient Population: Comparison of Qualitative and Quantitative Assessment |
| 50 | Jing Liu | Self-Gated Free-Breathing 4D Cardiac MRI with Simultaneous Water and Fat Visualization |
| 51 | Susan Noworolski | A Novel Luminal Water Model for Dynamic Contrast-Enhanced MRI of Prostatic Tissues |
| 52 | Janine Lupo | The Effects of Anti-Angtiogenic Therapy on the Formation of Radiation-Induced Microbleeds in Normal Brain Tissue of Patients with Glioma |
| 53 | Lisa Wilmes | Improved Spatial Resolution Diffusion-weighted Imaging for Characterizing Tumors in Patients with Invasive Breast Cancer Undergoing Neoadjuvant Chemotherapy |
| 54 | Francisco Valles | Combined Perfusion-Weighted and Diffusion-Weighted Imaging Groups Are Predictive of Clinical Outcomes of Primary Central Nervous System Lymphoma |
Poster Presentations
The maximum size of the poster is 4 feet by 4 feet. Poster set up is from 11am-12:45pm at Millberry Union. All posters are required to be set up during this session and before the symposium begins. Push pins will be provided for setting up posters. Authors must be at their posters during the designated poster session and must be available to answer questions during the period. Posters must be removed after the symposium. Posters that remain after 6pm will be discarded.
Awards
Certificates will be presented for the best poster and oral presentations. In addition, the Bruce Hasegawa Award for Excellence in Biomedical Imaging will be given to a student or postdoctoral researcher working in the Department of Radiology and Biomedical Imaging for outstanding work in Radiology, bioengineering, medical physics or nuclear engineering.
America/Los_Angeles publicType
Time Duration
Location
Notes
12:30pm, Cole Hall, 513 Parnassus Ave.
Speaker Presentations:
1:00pm - 4:15pm, Cole Hall, 513 Parnassus Ave.
Posters, Awards and Reception:
4:30pm – 6:00pm, Millberry Union, Golden Gate and City Lights rooms, 500 Parnassus Ave.
Symposium Booklet with Abstracts (pdf)
Watch video of the oral presentations. Note that the link is only available to UCSF employees (you must have "My Access" * to use this link successfully).
Symposium Program |
|
| 12:30 pm | Registration Cole Hall |
| 1:00-1:05 pm | Opening Remarks Sharmila Majumdar, PhD, Professor and Vice Chair for Research, Department of Radiology and Biomedical Imaging |
| 1:05-2:45 pm |
Selected Oral Presentations (Session I) |
|
1:05-1:15 pm |
Noninvasive Assessment of Renal Tumor Aggressiveness using Hyperpolarized 13C MR |
| 1:15-1:25 pm |
Chronic Cigarette Smoking in Alcohol Dependence: Associations with Cortical Thickness and N-acetylaspartate Levels in the Brain Reward System |
| 1:25-1:35 pm | Abnormal Joint Kinematics are Associated With Early Cartilage Degeneration Measured by MR T1rho in ACL Reconstructed Knees
Kothari A, Souza R, Wu S, Kumar D, Ma CB, Li X |
| 1:35-1:45 pm |
Development of an Early Biomarker of MGMT Activity and Response to Temozolomide Treatment Using Hyperpolarized 13C MR Metabolic Imaging |
| 1:45-1:55 pm |
Echo Planar Chemical Shift Imaging of Hyperpolarized 13C-Pyruvate and 13C-Lactate |
| 1:55-2:05 pm |
Three Component Molecular Breast Composition Predicts Lesion Type More Strongly than BI-RADS Lesion Classifiers |
| 2:05-2:15 pm |
Natural Course of Brain Atrophy Acceleration with Advancing Cognitive Decline from Normal Aging to Alzheimer’s Disease |
| 2:15-2:25 pm |
Diffusion Weighted-MRI of White Matter Injury Produced by Ethidium Bromide and Cervical Spinal Cord Contusion Injuries in the Rat |
| 2:25-2:55 pm | Coffee Break |
| 2:55-4:15 pm | Oral Presentations (Session II)
Moderators: Valerie Cardenas Nicolson, PhD and Jane Wang, MD |
| 2:55-3:05 pm | Longitudinal Evaluation of MPIO-labeled Stem Cell Tropism and Biodistribution in GBM Models using High Resolution and Contrast Enhanced MR Imaging at 14.1Tesla Chaumeil M, Gini B, Yang H, Iwanami A, Subramanian S, Ozawa T, Read EJ, Pieper RO, Mischel P, James CD, Ronen SM |
| 3:05-3:15 pm |
Age- and Gender-Related Differences in Cortical Geometry and Microstructure in the Distal Radius and Tibia: Improved Sensitivity by Regional Analysis |
| 3:15-3:25 pm |
Evaluation of Anatomy and Flow in Hemodialysis Fistulas |
| 3:25-3:35 pm |
High Resolution Diffusion MRI Characterizes Tumor Stromal Boundaries |
| 3:35-3:45 pm |
Super Resolution Track Density Imaging: Initial Clinical Study in Human Brain Tumors |
| 3:45-3:55 pm |
Mapping the Structural Connectivity Network in the Baby Brain Using Diffusion MRI |
| 3:55-4:05 pm |
Coronary Flow Reserve Measurement Obtained Conventional Dual-Head SPECT with 4D Spatiotemporal Iterative Reconstructions—A Clinical Study |
| 4:05-4:15 pm |
Hippocampal Volumes are Reduced After Mild Traumatic Brain Injury, but do not Correlate with Verbal Memory Function |
| 4:30-6:00 pm |
Poster Session, Award Presentations, and Catered Reception |
| 4:45 pm | Presentation of the Hasegawa Award
Ronald L. Arenson, MD, Professor and Chair, Department of Radiology and Biomedical Imaging |
| 5:45 pm |
Podium and Poster Presentation Awards and Closing Comments |
Poster Presentation List
| # | First Author | Abstract Title |
| 1 | Llewellyn Jalbert |
Magnetic resonance of 2-Hydroxyglutarate (2HG) in IDH1-mutant low-grade gliomas |
| 2 | Petter Dyverfeldt | Turbulence Intensity Mapping in Aortic Dilatation: Initial Experience |
| 3 | Simon Hu |
In Vivo Measurement of Normal Rat Intracellular Pyruvate and Lactate Levels after Injection of Hyperpolarized [1-13C]Alanine |
| 4 | Yinan Liu | Cerebral Blood Perfusion Dynamics in Alzheimer’s Disease and Mild Cognitive Impairment Using Four Phase Arterial Spin Labeling MRI model |
| 5 | Michael Lu | Importing Outside Imaging to PACS Reduces Repeat Imaging |
| 6 | Adam Elkhaled | Metabolic Characterization of Malignant Gliomas |
| 7 | Joseph Wilson | DXA-based Body Volume Measurement for Four-compartment Body Composition |
| 8 | Eugene Ozhinsky | Automated 3D MRSI Acquisition with Whole Brain Slice Selection and Outer-Volume Suppression |
| 9 | Peder Larson | Metabolic Activity Decomposition with Stimulated-echoes and Hyperpolarized substrates |
| 10 | Vanja Varenika | Contrast-enhanced CT Quantification of Hepatic Fibrosis |
| 11 | Michael Ewers | CSF Biomarker and PIB-PET Derived Beta-Amyloid Signature Predicts Metabolic, Grey Matter and Cognitive Changes in Non-Demented Subjects |
| 12 | David Pennington | Morphology Of The Brain Reward System: Relationship To Relapse And Extended Abstinence |
| 13 | Valerie Cardenas |
Co-analysis of Macro- and Microstructural Brain Alterations in Mild Cognitive Impairment using Anatomical and Diffusion MRI |
| 14 | Vitaliy Rayz | Simulation of Surgical Interventions Based on MRA and CTA |
| 15 | Thomas Hope | Evaluation of Gadolinium Accumulation and Fibrosis within the Liver after the Administration of Gadoxetate In a Rat Model of Cirrhosis |
| 16 | Michael Lu | Asymmetric Ascending Aortic Dilation with Bicuspid Aortic Valve |
| 17 | John-Paul Yu | Incidental Aortic Valve Calcification on CT Scans: Significance for Bicuspid and Tricuspid Valve Diesease |
| 18 | Ania Azziz | Quantitative and Qualitative Assessment of Breast MRI Background Enhancement in a Non-Cancer Patient Population |
| 19 | Matthew Bucknor | Extraspinal Sciatica in the Setting of Proximal Hamstring Injury: An Under Diagnosed Clinical Syndrome |
| 20 | Timothy Gilleran | The Effects of Gait Biomechanics on Knee Cartilage Biochemistry |
| 21 | Michael Pun | Solvent Exchange Fluorination Obviates [18F]Fluoride Ion Resolubilization |
| 22 | Anderson Mon |
A Mathematical Formula for the Prediction of Brain Tissue Volume Changes: Volume Increases in Abstinent Alcoholics and Decreases in Alzheimer’s Disease |
| 23 | Misung Han | Bilateral Hip MRI using Dual-Band Excitation with Slab-Phase Modulation |
| 24 | Wei Bian |
Achieving Heightened Contrast in Magnitude, Phase, and Susceptibility-Weighted Brain Images at 7T |
| 25 | Yong Pang | MR Experiment Validation of Parallel Traveling-Wave with Quadrature Patch Antenna Array |
| 26 | Subramaniam Sukumar | Fast 3D Imaging of Hyperpolarized 13C Biomarkers in-vivo at 14.1T |
| 27 | Alexander Dillon |
The Effect of Femoroacetabular Impingement on Hip Function Assessed By 3D Motion Analysis |
| 28 | Robert Bok | Multi-Parametric Analysis of Prostatic Neoplasia and Its Response to Therapy in a Targeted PTEN-Knockout Mouse Using Diffusion & Hyperpolarized 13C MRSI |
| 29 | Deepak Kumar | Walking Mechanics, Cartilage Morphology and Composition in Young Healthy Subjects with Knee Varus |
| 30 | Ye Li | Investigation of Multichannel Phased Array Configurations for Fetal MR Imaging at 1.5T |
| 31 | Christopher Drake | Novel Antibody-Based Probes for the Detection and Study of Pre-Malignant Breast Cancer Cells |
| 32 | Willy Tjong | Longitudinal HR-PQCT Assessment of The Influence of Reduced Weight Bearing on Bone Structure And Mechanics |
| 33 | Samuel Wu | Knee Cartilage Relaxation Times at 3 Months Following Menisectomy Using Chemical Shift-Based Water/Fat Separation |
| 34 | Dimitrios Karampinos |
Assessment of the Regional Distribution of Skeletal Muscle Adipose Tissue In Type 2 Diabetes |
| 35 | Cornelius von Morze | Quantitative Super-Resolution Track Density Imaging for Routine Clinical Use |
| 36 | Keerthi Shet | Quantitative and Histo-pathological Analysis of Osteo-arthritic Cartilage using MRI, HRMAS
Spectroscopy and Immuno-histochemistry |
| 37 | Vickie Zhang | Hyperpolarized 13C Biomarkers of Response to Prostate Cancer Radiation Therapy |
| 38 | Sangtaek Kim | Multi-Material Decomposition using Low-Current X-Ray and a Photon-Counting CZT Detector |
| 39 | Peter Shin | Multi-coil Sensitivity Estimation using Subspace Method |
| 40 | Joseph Schooler | Texture Analysis of T1ρ Relaxation Times in Knee Osteoarthritis |
| 41 | Miguel Cabarrus | What is normal? Critical description of pancreatic head morphology at CT imaging |
| 42 | Sai Duriseti |
Imaging the Urokinase Plasminogen Activator Receptor in Preclinical Models of Triple-Negative Breast Cancer Using Recombinant Human Antibodies |
| 43 | Christine Leon |
Investigating Cancer Kinetic Biomarkers Using Metabolic Activity Decomposition with Stimulated-Echo Acquisition Hyperpolarized Carbon-13 MR |
| 44 | Alessia Lodi | Treatment with the MEK Inhibitor U0126 in Prostate and Breast Cancer Cell Lines Consistently Increased Glycolytic Rates but not Rates of Hyperpolarized Pyruvate to Lactate Conversion |
| 45 | Michael Page | Ultra-sensitive, Non-invasive Quantification of Blood Clot Formation In Vivo |
| 46 | Gabriel Acevedo-Bolton | Rapid-Prototyping of patient specific flow models: methods and applications |
| 47 | Marcel Brus-Ramer | Idiopathic Thoracic Spinal Cord Herniation: Retrospective Analysis Supporting a Mechanism of Dural Injury and Subsequent Tamponade |
| 48 | Jason Bowen | Cardiac and Torso Phantom Measurements Acquired Under Extremely Low-Count Conditions with Highly Sensitive Multipinhole Collimators |
| 49 | Ania Azziz | Breast MRI Background Enhancement in a Non-Cancer Patient Population: Comparison of Qualitative and Quantitative Assessment |
| 50 | Jing Liu | Self-Gated Free-Breathing 4D Cardiac MRI with Simultaneous Water and Fat Visualization |
| 51 | Susan Noworolski | A Novel Luminal Water Model for Dynamic Contrast-Enhanced MRI of Prostatic Tissues |
| 52 | Janine Lupo | The Effects of Anti-Angtiogenic Therapy on the Formation of Radiation-Induced Microbleeds in Normal Brain Tissue of Patients with Glioma |
| 53 | Lisa Wilmes | Improved Spatial Resolution Diffusion-weighted Imaging for Characterizing Tumors in Patients with Invasive Breast Cancer Undergoing Neoadjuvant Chemotherapy |
| 54 | Francisco Valles | Combined Perfusion-Weighted and Diffusion-Weighted Imaging Groups Are Predictive of Clinical Outcomes of Primary Central Nervous System Lymphoma |
Poster Presentations
The maximum size of the poster is 4 feet by 4 feet. Poster set up is from 11am-12:45pm at Millberry Union. All posters are required to be set up during this session and before the symposium begins. Push pins will be provided for setting up posters. Authors must be at their posters during the designated poster session and must be available to answer questions during the period. Posters must be removed after the symposium. Posters that remain after 6pm will be discarded.
Awards
Certificates will be presented for the best poster and oral presentations. In addition, the Bruce Hasegawa Award for Excellence in Biomedical Imaging will be given to a student or postdoctoral researcher working in the Department of Radiology and Biomedical Imaging for outstanding work in Radiology, bioengineering, medical physics or nuclear engineering.