American Family Children's Hospital
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.



UW Health Clinics

202 S. Park (Meriter)
(608) 417-6090 | (888) 703-2778 | Map
Digestive Health Center
(608) 890-5000 | (855) 342-9900 | Map
University Hospital
(608) 263-8340 | (800) 323-8942 | Map
Wisconsin Institutes for Medical Research
(608) 265-8731 | Map

Hospital Affiliation(s)

University Hospital (primary)
Veterans Hospital - Wm. S. Middleton Memorial, UnityPoint Health - Meriter (secondary)

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, 1995


Best Doctors® in America 2015

Best Doctors® in America 2014

Best Doctors® in America 2013


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


Our doctors provide a wide range of services. The following list represents some, but not all, of the procedures offered by this physician.

  • Abdominal CT Scan
  • Abdominal MRI
  • Abdominal X-Ray
  • Colon Contrast X-Ray
  • Esophagram
  • Swallowing Function w/Cineradiography
  • Transvaginal Ultrasound
  • Upper GI Tract X-Ray
  • Virtual Colonoscopy

Dr. Pickhardt is the principal investigator of a University of Wisconsin clinical trial studying the efficacy of virtual colonoscopy. He also co-edited a textbook on body computed tomography and published a number of scientific papers. His work has resulted in more than 100 scientific publications, six book chapters and one textbook.

PubMed Articles
Lee MH Hinshaw JL Kim DH Pickhardt PJ . Symptomatic Versus Asymptomatic Colorectal Cancer: Predictive Features at CT Colonography. Acad Radiol. 2016 Jun;23(6):712-7
[PubMed ID: 26852246]
Johnson B Hinshaw JL Robbins JB Pickhardt PJ . Objective and Subjective Intrapatient Comparison of Iohexol Versus Diatrizoate for Bowel Preparation Quality at CT Colonography. AJR Am J Roentgenol. 2016 Jun;206(6):1202-7
[PubMed ID: 27010251]
Graffy PM Pickhardt PJ . Quantification of hepatic and visceral fat by CT and MR imaging: relevance to the obesity epidemic, metabolic syndrome and NAFLD. Br J Radiol. 2016 Jun;89(1062):20151024
[PubMed ID: 26876880]
Lubner MG Stabo N Abel EJ Del Rio AM Pickhardt PJ . CT Textural Analysis of Large Primary Renal Cell Carcinomas: Pretreatment Tumor Heterogeneity Correlates With Histologic Findings and Clinical Outcomes. AJR Am J Roentgenol. 2016 May 4;:W1-W10
[PubMed ID: 27145377]
Furusato Hunt OM Lubner MG Ziemlewicz TJ Muñoz Del Rio A Pickhardt PJ . The Liver Segmental Volume Ratio for Noninvasive Detection of Cirrhosis: Comparison With Established Linear and Volumetric Measures. J Comput Assist Tomogr. 2016 May-Jun;40(3):478-84
[PubMed ID: 26966951]
Flor N Maconi G Cornalba G Pickhardt PJ . The Current Role of Radiologic and Endoscopic Imaging in the Diagnosis and Follow-Up of Colonic Diverticular Disease. AJR Am J Roentgenol. 2016 Apr 15;:1-10
[PubMed ID: 27082846]
Ziemlewicz TJ Maciejewski A Binkley N Brett AD Brown JK Pickhardt PJ . Opportunistic Quantitative CT Bone Mineral Density Measurement at the Proximal Femur Using Routine Contrast-Enhanced Scans: Direct Comparison with DXA in 355 Adults. J Bone Miner Res. 2016 Apr 15;
[PubMed ID: 27082831]
Kinner S Repplinger MD Pickhardt PJ Reeder SB . Contrast-Enhanced Abdominal MRI for Suspected Appendicitis: How We Do It. AJR Am J Roentgenol. 2016 Apr 11;:1-9
[PubMed ID: 27065072]
Repplinger MD Weber AC Pickhardt PJ Rajamanickam VP Svenson JE Ehlenbach WJ Westergaard RP Reeder SB Jacobs EA . Trends in the Use of Medical Imaging to Diagnose Appendicitis at an Academic Medical Center. J Am Coll Radiol. 2016 Apr 2;
[PubMed ID: 27053160]
Ziemlewicz TJ Maciejewski A Binkley N Brett AD Brown JK Pickhardt PJ . Direct Comparison of Unenhanced and Contrast-Enhanced CT for Opportunistic Proximal Femur Bone Mineral Density Measurement: Implications for Osteoporosis Screening. AJR Am J Roentgenol. 2016 Apr;206(4):694-8
[PubMed ID: 26866336]
Golden SK Harringa JB Pickhardt PJ Ebinger A Svenson JE Zhao YQ Li Z Westergaard RP Ehlenbach WJ Repplinger MD . Prospective evaluation of the ability of clinical scoring systems and physician-determined likelihood of appendicitis to obviate the need for CT. Emerg Med J. 2016 Mar 2;
[PubMed ID: 26935714]
Katabathina V Menias CO Pickhardt P Lubner M Prasad SR . Complications of Immunosuppressive Therapy in Solid Organ Transplantation. Radiol Clin North Am. 2016 Mar;54(2):303-19
[PubMed ID: 26896226]
Kim DH Matkowskyj KA Lubner MG Hinshaw JL Munoz Del Rio A Pooler BD Weiss JM Pickhardt PJ . Serrated Polyps at CT Colonography: Prevalence and Characteristics of the Serrated Polyp Spectrum. Radiology. 2016 Feb 15;:151608
[PubMed ID: 26878227]
Pooler BD Kim DH Pickhardt PJ . Potentially Important Extracolonic Findings at Screening CT Colonography: Incidence and Outcomes Data From a Clinical Screening Program. AJR Am J Roentgenol. 2016 Feb;206(2):313-8
[PubMed ID: 26491809]
Gomez-Cardona D Li K Hsieh J Lubner MG Pickhardt PJ Chen GH . Can conclusions drawn from phantom-based image noise assessments be generalized to in vivo studies for the nonlinear model-based iterative reconstruction method? Med Phys. 2016 Feb;43(2):687
[PubMed ID: 26843232]
Pooler BD Kim DH Weiss JM Matkowskyj KA Pickhardt PJ . Colorectal Polyps Missed with Optical Colonoscopy Despite Previous Detection and Localization with CT Colonography. Radiology. 2016 Feb;278(2):422-9
[PubMed ID: 26280354]
Theis J Kim DH Lubner MG Del Rio AM Pickhardt PJ . CT colonography after incomplete optical colonoscopy: bowel preparation quality at same-day vs. deferred examination. Abdom Radiol (NY). 2016 Jan;41(1):10-8
[PubMed ID: 26830606]
Flor N Maconi G Sardanelli F Lombardi MA Colombo B Di Leo G Falleni M Cornalba G Pickhardt PJ . Prognostic Value of the Diverticular Disease Severity Score Based on CT Colonography: Follow-up in Patients Recovering from Acute Diverticulitis. Acad Radiol. 2015 Dec;22(12):1503-9
[PubMed ID: 26482263]
Yang HK Ko Y Lee MH Woo H Ahn S Kim B Pickhardt PJ Kim MS Park SB Lee KH . Initial Performance of Radiologists and Radiology Residents in Interpreting Low-Dose (2-mSv) Appendiceal CT. AJR Am J Roentgenol. 2015 Dec;205(6):W594-611
[PubMed ID: 26587949]
Hahn L Reeder SB Muñoz del Rio A Pickhardt PJ . Longitudinal Changes in Liver Fat Content in Asymptomatic Adults: Hepatic Attenuation on Unenhanced CT as an Imaging Biomarker for Steatosis. AJR Am J Roentgenol. 2015 Dec;205(6):1167-72
[PubMed ID: 26587921]