Perry J. Pickhardt, MD close

Perry J. Pickhardt, MD Print Friendly Page

Faculty, University of Wisconsin School of Medicine and Public Health

Dr. Pickhardt’s primary clinical and research interests are CT colonography and colorectal cancer screening, including virtual colonoscopy. He joined the Abdominal Imaging Section at the University of Wisconsin School of Medicine and Public Health in 2003 as an associate professor of radiology. Prior to that, Dr. Pickhardt organized and served as principal investigator for a large multi-center screening trial evaluating CT colonography (virtual colonoscopy) while at the National Naval Medical Center in Bethesda, Maryland. Dr. Pickhardt also was awarded a Figley Fellowship in the American Journal of Radiology editorial office in Winston-Salem, North Carolina in 2002.



Abdominal CT Scan

Abdominal Imaging and Intervention

Abdominal MRI

Abdominal X-Ray

Colon Contrast X-Ray

Computerized Tomography (CT) Scan


Fluoroscopic Studies

Image-guided Biopsy

Magnetic Resonance Imaging (MRI) Scan


Swallowing Function w/Cineradiography

Transvaginal Ultrasound


Upper GI Tract X-Ray

Virtual Colonoscopy



Digestive Health Center
(608) 890-5000 | (855) 342-9900 | Map
UnityPoint Health - Meriter
(608) 417-6090 | (888) 703-2778 | Map
University Hospital
(608) 263-9729 | (800) 323-8942 | Map
Wisconsin Institutes for Medical Research
(608) 265-8231 | | Map

UW School of Medicine and Public Health

Department of Radiology

Professional Certifications and Education

Board Certification Diagnostic Radiology
Residency Mallinckrodt Institute of Radiology, St. Louis, MO
Medical School University of Michigan Medical School, Ann Arbor, MI

Medical interpreters are available to help patients communicate with hospital and clinic staff. For more information, please contact interpreter services at (608) 262-9000.

Dr. Pickhardt has been the principal investigator of multiple University of Wisconsin clinical trials studying computerized tomography (CT) and virtual colonoscopy. He has edited a number of textbooks in abdominal radiology. His work has resulted in more than 300 scientific publications and book chapters.

PubMed Articles
Dreyfuss LD Abel EJ Nystrom J Stabo NJ Pickhardt PJ Lubner MG Comparison of CT Texture Analysis Software Platforms in Renal Cell Carcinoma: Reproducibility of Numerical Values and Association With Histologic Subtype Across Platforms. AJR Am J Roentgenol . 2021 Apr 14;:1-9
[PubMed ID: 33852332]
Nassar S Menias CO Palmquist S Nada A Pickhardt PJ Shaaban AM Gaballah AH Elsayes KM Ligament of Treitz: Anatomy, Relevance of Radiologic Findings, and Radiologic-Pathologic Correlation. AJR Am J Roentgenol . 2021 Apr;216(4):927-934
[PubMed ID: 33566632]
Harringa JB Bracken RL Markhardt BK Ziemlewicz TJ Lubner M Chiu A Birstler J Pickhardt PJ Reeder SB Repplinger MD Magnetic resonance imaging versus computed tomography and ultrasound for the diagnosis of female pelvic pathology. Emerg Radiol . 2021 Mar 17;
[PubMed ID: 33730220]
Pickhardt PJ Correale L Hassan C PPV and Detection Rate of mt-sDNA, FIT, and CT Colonography for Advanced Neoplasia: A Hierarchical Bayesian Meta-Analysis of the Noninvasive Colorectal Screening Tests. AJR Am J Roentgenol . 2021 Mar 11;
[PubMed ID: 33703913]
Lubner MG Mankowski Gettle L Kim DH Ziemlewicz TJ Dahiya N Pickhardt P Diagnostic and procedural intraoperative ultrasound: technique, tips and tricks for optimizing results. Br J Radiol . 2021 Mar 8;:20201406
[PubMed ID: 33684305]
Perez AA Pickhardt PJ Elton DC Sandfort V Summers RM Fully automated CT imaging biomarkers of bone, muscle, and fat: correcting for the effect of intravenous contrast. Abdom Radiol (NY) . 2021 Mar;46(3):1229-1235
[PubMed ID: 32948910]
Ranieri DM Enzerra MD Pickhardt PJ Prevalence of Appendicoliths Detected at CT in Adults With Suspected Appendicitis. AJR Am J Roentgenol . 2021 Mar;216(3):677-682
[PubMed ID: 33474985]
Lubner MG Graffy PM Said A Watson R Zea R Malecki KM Pickhardt PJ Utility of Multiparametric CT for Identification of High-Risk NAFLD. AJR Am J Roentgenol . 2021 Mar;216(3):659-668
[PubMed ID: 33474981]
Pickhardt PJ Perez AA Elmohr MM Elsayes KM CT imaging review of uncommon peritoneal-based neoplasms: beyond carcinomatosis. Br J Radiol . 2021 Mar 1;94(1119):20201288
[PubMed ID: 33353398]
Cheng X Zhao K Zha X Du X Li Y Chen S Wu Y Li S Lu Y Zhang Y Xiao X Li Y Ma X Gong X Chen W Yang Y Jiao J Chen B Lv Y Gao J Hong G Pan Y Yan Y Qi H Ran L Zhai J Wang L Li K Fu H Wu J Liu S Blake GM Pickhardt PJ Ma Y Fu X Dong S Zeng Q Guo Z Hind K Engelke K Tian W China Health Big Data (China Biobank) project investigators. Opportunistic Screening Using Low-Dose CT and the Prevalence of Osteoporosis in China: A Nationwide, Multicenter Study. J Bone Miner Res . 2021 Mar;36(3):427-435
[PubMed ID: 33145809]
Pickhardt PJ Graffy PM Perez AA Lubner MG Elton DC Summers RM Opportunistic Screening at Abdominal CT: Use of Automated Body Composition Biomarkers for Added Cardiometabolic Value. Radiographics . 2021 Mar-Apr;41(2):524-542
[PubMed ID: 33646902]
Cao W Liang Z Gao Y Pomeroy MJ Han F Abbasi A Pickhardt PJ A dynamic lesion model for differentiation of malignant and benign pathologies. Sci Rep . 2021 Feb 10;11(1):3485
[PubMed ID: 33568762]
Perez AA Pickhardt PJ Intestinal malrotation in adults: prevalence and findings based on CT colonography. Abdom Radiol (NY) . 2021 Feb 9;
[PubMed ID: 33558953]
Moreno CC Yee J Ahmed FS Barish MA Brewington C Dachman AH Gollub MJ Kim DH McFarland E Pickhardt PJ Reddy S Zalis M Chang KJ CT colonography's role in the COVID-19 pandemic: a safe(r), socially distanced total colon examination. Abdom Radiol (NY) . 2021 Feb;46(2):486-490
[PubMed ID: 32748251]
Flor N Pickhardt PJ Maconi G Panella S Falleni M Merlo V Di Leo G CT colonography followed by elective surgery in patients with acute diverticulitis: a radiological-pathological correlation study. Abdom Radiol (NY) . 2021 Feb;46(2):491-497
[PubMed ID: 32748249]
Graffy PM Summers RM Perez AA Sandfort V Zea R Pickhardt PJ Automated assessment of longitudinal biomarker changes at abdominal CT: correlation with subsequent cardiovascular events in an asymptomatic adult screening cohort. Abdom Radiol (NY) . 2021 Jan 3;
[PubMed ID: 33388896]
Pickhardt PJ Graffy PM Zea R Lee SJ Liu J Sandfort V Summers RM Utilizing Fully Automated Abdominal CT-Based Biomarkers for Opportunistic Screening for Metabolic Syndrome in Adults Without Symptoms. AJR Am J Roentgenol . 2021 Jan;216(1):85-92
[PubMed ID: 32603223]
Jian J Li Y Pickhardt PJ Xia W He Z Zhang R Zhao S Zhao X Cai S Zhang J Zhang G Jiang J Zhang Y Wang K Lin G Feng F Wu X Gao X Qiang J MR image-based radiomics to differentiate type Ι and type ΙΙ epithelial ovarian cancers. Eur Radiol . 2021 Jan;31(1):403-410
[PubMed ID: 32743768]
Enzerra MD Ranieri DM Pickhardt PJ Stump Appendicitis: Clinical and CT Findings. AJR Am J Roentgenol . 2020 Dec;215(6):1363-1369
[PubMed ID: 33021832]
Kirsch MJ Hsu KT Lee MH Pickhardt PJ Kim DH Sippel RS Dedhia PH Hormonal Evaluation of Incidental Adrenal Masses: The Exception, Not the Rule. World J Surg . 2020 Nov;44(11):3778-3785
[PubMed ID: 32651604]