Spencer Behr, MD

Assistant Professor
Asst Prof Clinical Radiology

Biography

Spencer Behr, MD, is an Assistant Professor of Clinical Radiology and the Director of the Fellowship for both the Abdominal Imaging subspecialty and for the Department of Radiology and Biomedical Imaging at the University of California, San Francisco. He obtained his medical degree from Tufts University School of Medicine, Boston in 2005. In 2010, he completed a four-year Diagnostic Radiology residency at the Lahey Clinic Medical Center in Burlington, Massachusetts, followed by a fellowship in Abdominal Imaging and Nuclear Medicine at UCSF.

Dr. Behr has subspecialty training in abdominal imaging and nuclear medicine, and his research interests are focused on molecular and hybrid imaging translational research. He has selectively pursued interdepartmental projects to foster cross-disciplinary discussions and optimize the clinical impact of these projects.

Projects include: FDG PET in breast cancer, comparing breast cancer molecular subtypes with their respective FDG PET and breast MRI findings, CT findings in Celiac Disease, fluoro-18-fluorothymidine (FLT) PET as a potential marker of early response in patients with metastatic melanoma, CT appearance of malabsorption, and clinical applications of iodine-124 PET/CT in thyroid cancer.

Expertise:
Abdominal Imaging and Nuclear Medicine

Specialty:
Molecular and hybrid imaging translational research

Professional Interests:
Translational research in the fields of prostate and the development of novel imaging techniques using PET/CT and PET/MR

Education and Training:
• Medical School: Tufts University School of Medicine, Boston - Medicine
• Internship: Saint Vincent Hospital, Worchester - Medicine
• Residency: Lahey Clinic Medical Center, Burlington - Diagnostic Radiology
• Residency: Lahey Clinic Medical Center, Burlington - Chief Resident, Diagnostic Radiology
• Fellowship: University of California, San Francisco - Abdominal Imaging
• Fellowship: University of California, San Francisco - Nuclear Medicine
• American Board of Nuclear Medicine
• American Board of Radiology with Authorized User - Board Certified 2010
• Full Medical License: California
• ACLS, BLS Certification
• Fluoroscopy License

Education

M.D., 2005 - School of Medicine, Tufts University

Publications

Lim HC, Montesion M, Botton T, Collisson EA, Umetsu SE, Behr SC, Gordan JD, Stephens PJ, Kelley RK. Hybrid Capture-Based Tumor Sequencing and Copy Number Analysis to Confirm Origin of Metachronous Metastases in BRCA1-Mutant Cholangiocarcinoma Harboring a Novel YWHAZ-BRAF Fusion. Oncologist. 2018 Apr 05.
Marcus SG, Candia S, Kohli MD, Mongan J, Zagoria RJ, Behr SC, Sun D, Westphalen AC. Association between misty mesentery with baseline or new diagnosis of cancer: a matched cohort study. Clin Imaging. 2017 Dec 15; 50:57-61.
Behr SC, Bahroos E, Hawkins RA, Nardo L, Ravanfar V, Capbarat EV, Seo Y. Quantitative and Visual Assessments toward Potential Sub-mSv or Ultrafast FDG PET Using High-Sensitivity TOF PET in PET/MRI. Mol Imaging Biol. 2017 Nov 30.
Cabarrus MC, Yeh BM, Phelps AS, Ou JJ, Behr SC. From Inguinal Hernias to Spermatic Cord Lipomas: Pearls, Pitfalls, and Mimics of Abdominal and Pelvic Hernias. Radiographics. 2017 Nov-Dec; 37(7):2063-2082.
Fernandez A, Conrad M, Gill RM, Choi WT, Kumar V, Behr S. Solitary fibrous tumor in the abdomen and pelvis: A case series with radiological findings and treatment recommendations. Clin Imaging. 2018 Mar - Apr; 48:48-54.
Lake ST, Greene KL, Westphalen AC, Behr SC, Zagoria R, Small EJ, Carroll PR, Hope TA. Optimal MRI sequences for 68Ga-PSMA-11 PET/MRI in evaluation of biochemically recurrent prostate cancer. EJNMMI Res. 2017 Sep 19; 7(1):77.
Katz MHG, Ou FS, Herman JM, Ahmad SA, Wolpin B, Marsh R, Behr S, Shi Q, Chuong M, Schwartz LH, Frankel W, Collisson E, Koay EJ, Hubbard JM, Leenstra JL, Meyerhardt J, O'Reilly E. Alliance for clinical trials in oncology (ALLIANCE) trial A021501: preoperative extended chemotherapy vs. chemotherapy plus hypofractionated radiation therapy for borderline resectable adenocarcinoma of the head of the pancreas. BMC Cancer. 2017 Jul 27; 17(1):505.
Aggarwal R, Behr SC, Paris PL, Truillet C, Parker MFL, Huynh LT, Wei J, Hann B, Youngren J, Huang J, Premasekharan G, Ranatunga N, Chang E, Gao KT, Ryan CJ, Small EJ, Evans MJ. Real-Time Transferrin-Based PET Detects MYC-Positive Prostate Cancer. Mol Cancer Res. 2017 Sep; 15(9):1221-1229.
Meier JM, Behr SC, Jordan E, Pallav Kolli K, Yeh BM. Intraperitoneal metastases after transarterial embolization of hepatocellular carcinoma: An observational study. Abdom Radiol (NY). 2017 Jun; 42(6):1794-1798.
Ohliger MA, Hope TA, Chapman JS, Chen LM, Behr SC, Poder L. PET/MR Imaging in Gynecologic Oncology. Magn Reson Imaging Clin N Am. 2017 Aug; 25(3):667-684.
Lawhn-Heath C, Flavell RR, Glastonbury C, Hope TA, Behr SC. Incidental Detection of Head and Neck Squamous Cell Carcinoma on 68Ga-PSMA-11 PET/CT. Clin Nucl Med. 2017 Apr; 42(4):e218-e220.
Yang J, Jian Y, Jenkins N, Behr SC, Hope TA, Larson PEZ, Vigneron D, Seo Y. Quantitative Evaluation of Atlas-based Attenuation Correction for Brain PET in an Integrated Time-of-Flight PET/MR Imaging System. Radiology. 2017 07; 284(1):169-179.
Behr SC, Mollard BJ, Yang J, Flavell RR, Hawkins RA, Seo Y. Effect of Time-of-Flight and Regularized Reconstructions on Quantitative Measurements and Qualitative Assessments in Newly Diagnosed Prostate Cancer With 18F-Fluorocholine Dual Time Point PET/MRI. Mol Imaging. 2017 Jan-Dec; 16:1536012117736703.
Mari Aparici C, Behr SC, Seo Y, Kelley RK, Corvera C, Gao KT, Aggarwal R, Evans MJ. Imaging Hepatocellular Carcinoma With 68Ga-Citrate PET: First Clinical Experience. Mol Imaging. 2017 Jan-Dec; 16:1536012117723256.
Yeh MJ, Kim SY, Jhaveri KS, Behr SC, Seo N, Yeh BM. Imaging of autoimmune biliary disease. Abdom Radiol (NY). 2017 Jan; 42(1):3-18.
Behr SC, Aggarwal R, Seo Y, Aparici CM, Chang E, Gao KT, Tao DH, Small EJ, Evans MJ. A Feasibility Study Showing [68Ga]Citrate PET Detects Prostate Cancer. Mol Imaging Biol. 2016 12; 18(6):946-951.
Atreya CE, Greene C, McWhirter RM, Ikram NS, Allen IE, Van Loon K, Venook AP, Yeh BM, Behr SC. Differential Radiographic Appearance of BRAF V600E-Mutant Metastatic Colorectal Cancer in Patients Matched by Primary Tumor Location. J Natl Compr Canc Netw. 2016 12; 14(12):1536-1543.
Jha P, Bentley B, Behr S, Yee J, Zagoria R. Imaging of flank pain: readdressing state-of-the-art. Emerg Radiol. 2017 Feb; 24(1):81-86.
Choi JY, Yang J, Noworolski SM, Behr S, Chang AJ, Simko JP, Nguyen HG, Carroll PR, Kurhanewicz J, Seo Y. 18F Fluorocholine Dynamic Time-of-Flight PET/MR Imaging in Patients with Newly Diagnosed Intermediate- to High-Risk Prostate Cancer: Initial Clinical-Pathologic Comparisons. Radiology. 2017 Feb; 282(2):429-436.
Li Y, Mongan J, Behr SC, Sud S, Coakley FV, Simko J, Westphalen AC. Beyond Prostate Adenocarcinoma: Expanding the Differential Diagnosis in Prostate Pathologic Conditions. Radiographics. 2016 Jul-Aug; 36(4):1055-75.
Flavell RR, Behr SC, Mabray MC, Hernandez-Pampaloni M, Naeger DM. Detecting Pulmonary Nodules in Lung Cancer Patients Using Whole Body FDG PET/CT, High-resolution Lung Reformat of FDG PET/CT, or Diagnostic Breath Hold Chest CT. Acad Radiol. 2016 Sep; 23(9):1123-9.
Mabray MC, Brus-Ramer M, Behr SC, Pampaloni MH, Majumdar S, Dillon WP, Talbott JF. (18)F-Sodium Fluoride PET-CT Hybrid Imaging of the Lumbar Facet Joints: Tracer Uptake and Degree of Correlation to CT-graded Arthropathy. World J Nucl Med. 2016 May-Aug; 15(2):85-90.
Ehman EC, Behr SC, Umetsu SE, Fidelman N, Yeh BM, Ferrell LD, Hope TA. Rate of observation and inter-observer agreement for LI-RADS major features at CT and MRI in 184 pathology proven hepatocellular carcinomas. Abdom Radiol (NY). 2016 05; 41(5):963-9.
Flavell RR, Naeger DM, Aparici CM, Hawkins RA, Pampaloni MH, Behr SC. Malignancies with Low Fluorodeoxyglucose Uptake at PET/CT: Pitfalls and Prognostic Importance: Resident and Fellow Education Feature. Radiographics. 2016 Jan-Feb; 36(1):293-4.
Yang J, Jian Y, Tohme M, Behr S, Vigneron D, Majumdar S, Seo Y. Impact of atlas-CT-based bone anatomy compensation on MR-based attenuation correction for brain PET imaging in a time-of-flight PET/MRI system: A direct comparison to a patient-CT-based approach. EJNMMI Phys. 2015 Dec; 2(Suppl 1):A68.
Dhatt HS, Behr SC, Miracle A, Wang ZJ, Yeh BM. Radiological Evaluation of Bowel Ischemia. Radiol Clin North Am. 2015 Nov; 53(6):1241-54.
Kollhorst B, Behr S, Enders D, Dippel FW, Theobald K, Garbe E. Comparison of basal insulin therapies with regard to the risk of acute myocardial infarction in patients with type 2 diabetes: an observational cohort study. Diabetes Obes Metab. 2015 Dec; 17(12):1158-65.
Kohi MP, Fidelman N, Behr S, Taylor AG, Kolli K, Conrad M, Hwang G, Weinstein S. Periprocedural Patient Care. Radiographics. 2015 Oct; 35(6):1766-78.
Olorunsola OG, Kohi MP, Behr SC, Kolli PK, Taylor AG, Tong RT, LaBerge JM, Kerlan RK, Fidelman N. Imaging Predictors of Elevated Lung Shunt Fraction in Patients Being Considered for Yttrium-90 Radioembolization. J Vasc Interv Radiol. 2015 Oct; 26(10):1472-8.
Mabray MC, Behr SC, Naeger DM, Flavell RR, Glastonbury CM. Predictors of pathologic outcome of focal FDG uptake in the parotid gland identified on whole-body FDG PET imaging. Clin Imaging. 2015 Nov-Dec; 39(6):1073-9.
Burris NS, Johnson KM, Larson PE, Hope MD, Nagle SK, Behr SC, Hope TA. Detection of Small Pulmonary Nodules with Ultrashort Echo Time Sequences in Oncology Patients by Using a PET/MR System. Radiology. 2016 Jan; 278(1):239-46.
Algazi AP, Cha E, Ortiz-Urda SM, McCalmont T, Bastian BC, Hwang J, Pampaloni MH, Behr S, Chong K, Cortez B, Quiroz A, Coakley F, Liu S, Daud AI. The combination of axitinib followed by paclitaxel/carboplatin yields extended survival in advanced BRAF wild-type melanoma: results of a clinical/correlative prospective phase II clinical trial. Br J Cancer. 2015 Apr 14; 112(8):1326-31.
Barajas RF, Pampaloni MH, Clarke JL, Seo Y, Savic D, Hawkins RA, Behr SC, Chang SM, Berger M, Dillon WP, Cha S. Assessing Biological Response to Bevacizumab Using 18F-Fluoromisonidazole PET/MR Imaging in a Patient with Recurrent Anaplastic Astrocytoma. Case Rep Radiol. 2015; 2015:731361.
Naeger DM, Behr SC. PET/MR imaging: current and future applications for cardiovascular disease. Magn Reson Imaging Clin N Am. 2015 Feb; 23(1):95-103.
Liu T, Behr S, Khan S, Osterhoff R, Aparici CM. Focal Colonic FDG Activity with PET/CT: Guidelines for Recommendation of Colonoscopy. World J Nucl Med. 2015 Jan-Apr; 14(1):25-30.
Valenzuela DM, Behr SC, Coakley FV, Wang ZJ, Webb EM, Yeh BM. Computed tomography of iatrogenic complications of upper gastrointestinal endoscopy, stenting, and intubation. Radiol Clin North Am. 2014 Sep; 52(5):1055-70.
Flavell RR, Behr SC, Brunsing RL, Naeger DM, Pampaloni MH. The incidence of pulmonary embolism and associated FDG-PET findings in IV contrast-enhanced PET/CT. Acad Radiol. 2014 Jun; 21(6):718-25.
Liu T, Khan S, Behr S, Aparici CM. Diagnosis of Cardiac Metastasis from Endometrial Cancer by F-18 FDG-PET/CT. Nucl Med Mol Imaging. 2014 Sep; 48(3):237-40.
Coakley FV, Grant MJ, Behr S, Foster BR, Korngold EK, Didier RA. Imaging of invasive thymoma in the costophrenic recess presenting as thickening of arcuate ligaments of the diaphragm. Clin Imaging. 2014 Jul-Aug; 38(4):529-531.
Miracle AC, Behr SC, Benhamida J, Gill RM, Yeh BC. Mesenteric inflammatory veno-occlusive disease: radiographic and histopathologic evaluation of 2 cases. Abdom Imaging. 2014 Feb; 39(1):18-24.
Bolouri MS, Elias SG, Wisner DJ, Behr SC, Hawkins RA, Suzuki SA, Banfield KS, Joe BN, Hylton NM. Triple-negative and non-triple-negative invasive breast cancer: association between MR and fluorine 18 fluorodeoxyglucose PET imaging. Radiology. 2013 Nov; 269(2):354-61.
Behr SC, Courtier JL, Qayyum A. Imaging of müllerian duct anomalies. Radiographics. 2012 Oct; 32(6):E233-50.
Scholz FJ, Afnan J, Behr SC. CT findings in adult celiac disease. Radiographics. 2011 Jul-Aug; 31(4):977-92.
Amaravadi RR, Behr SC, Kousoubris PD, Raja S. [18F] Fluorodeoxyglucose positron-emission tomography-CT imaging of carotidynia. AJNR Am J Neuroradiol. 2008 Jun; 29(6):1197-9.
Scholz FJ, Behr SC, Scheirey CD. Intramural fat in the duodenum and proximal small intestine in patients with celiac disease. AJR Am J Roentgenol. 2007 Oct; 189(4):786-90.