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

Digestive Health Center
(608) 890-5000 | (855) 342-9900 | Map
202 S. Park (UnityPoint Health - Meriter)
(608) 417-6090 | (888) 703-2778 | 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.


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
Pooler BD Kim DH Pickhardt PJ . Indeterminate but Likely Unimportant Extracolonic Findings at Screening CT Colonography (C-RADS Category E3): Incidence and Outcomes Data From a Clinical Screening Program. AJR Am J Roentgenol. 2016 Nov;207(5):996-1001
[PubMed ID: 27505184]
Garner HW Paturzo MM Gaudier G Pickhardt PJ Wessell DE . Variation in Attenuation in L1 Trabecular Bone at Different Tube Voltages: Caution Is Warranted When Screening for Osteoporosis With the Use of Opportunistic CT. AJR Am J Roentgenol. 2016 Oct 20;:1-6
[PubMed ID: 27762605]
Scrima A Lubner MG King S Kennedy G Pickhardt PJ . Abdominal Multidetector Computed Tomography for Suspected Small-Bowel Obstruction: Multireader Study Comparing Radiologist Performance for Predicting Surgical Outcomes. J Comput Assist Tomogr. 2016 Oct 18;
[PubMed ID: 27759602]
Kramer H Pickhardt PJ Kliewer MA Hernando D Chen GH Zagzebski JA Reeder SB . Accuracy of Liver Fat Quantification With Advanced CT, MRI, and Ultrasound Techniques: Prospective Comparison With MR Spectroscopy. AJR Am J Roentgenol. 2016 Oct 11;:1-9
[PubMed ID: 27726414]
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 Oct;31(10):1835-1840
[PubMed ID: 27082831]
Sievers CK Zou LS Pickhardt PJ Matkowskyj KA Albrecht DM Clipson L Bacher JW Pooler BD Moawad FJ Cash BD Reichelderfer M Vo TN Newton MA Larget BR Halberg RB . Subclonal diversity arises early even in small colorectal tumours and contributes to differential growth fates. Gut. 2016 Sep 8;
[PubMed ID: 27609830]
Pooler BD Lubner MG Kim DH Chen OT Li K Chen GH Pickhardt PJ . Prospective Evaluation of Reduced Dose Computed Tomography for the Detection of Low-Contrast Liver Lesions: Direct Comparison with Concurrent Standard Dose Imaging. Eur Radiol. 2016 Sep 5;
[PubMed ID: 27595834]
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 Sep;13(9):1050-6
[PubMed ID: 27053160]
Pickhardt PJ Malecki K Kloke J Lubner MG . Accuracy of Liver Surface Nodularity Quantification on MDCT as a Noninvasive Biomarker for Staging Hepatic Fibrosis. AJR Am J Roentgenol. 2016 Aug 30;:1-6
[PubMed ID: 27575867]
Pickhardt PJ Pooler BD Mbah I Weiss JM Kim DH . Colorectal Findings at Repeat CT Colonography Screening after Initial CT Colonography Screening Negative for Polyps Larger than 5 mm. Radiology. 2016 Aug 22;:160582
[PubMed ID: 27552558]
Kim DU Lubner MG Mellnick VM Joshi G Pickhardt PJ . Heterotopic pancreatic rests: imaging features, complications, and unifying concepts. Abdom Radiol (NY). 2016 Aug 20;
[PubMed ID: 27544356]
Kim DH Matkowskyj KA Pickhardt PJ . Serrated polyps are detected at CT colonography: clinical observations over the past decade and results from CTC-based screening of average risk adults. Abdom Radiol (NY). 2016 Aug;41(8):1445-7
[PubMed ID: 27405644]
Pickhardt PJ . Emerging stool-based and blood-based non-invasive DNA tests for colorectal cancer screening: the importance of cancer prevention in addition to cancer detection. Abdom Radiol (NY). 2016 Aug;41(8):1441-4
[PubMed ID: 27259335]
Yee J Chang KJ Dachman AH Kim DH McFarland EG Pickhardt PJ Cash BD Bruining DH Zalis ME . The Added Value of the CT Colonography Reporting and Data System. J Am Coll Radiol. 2016 Aug;13(8):931-5
[PubMed ID: 27260486]
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 Aug;280(2):455-63
[PubMed ID: 26878227]
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 Jul;207(1):96-105
[PubMed ID: 27145377]
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 Jul;207(1):15-24
[PubMed ID: 27082846]
Kinner S Repplinger MD Pickhardt PJ Reeder SB . Contrast-Enhanced Abdominal MRI for Suspected Appendicitis: How We Do It. AJR Am J Roentgenol. 2016 Jul;207(1):49-57
[PubMed ID: 27065072]
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 Jul;33(7):458-64
[PubMed ID: 26935714]
Bannas P Li Y Motosugi U Li K Lubner M Chen GH Pickhardt PJ . Prior Image Constrained Compressed Sensing Metal Artifact Reduction (PICCS-MAR): 2D and 3D Image Quality Improvement with Hip Prostheses at CT Colonography. Eur Radiol. 2016 Jul;26(7):2039-46
[PubMed ID: 26521266]