Dr. Perry Pickhardt

CT
Atlas of Gastrointestinal Imaging, Chapter 7 -- The Pancreas
Intraductal papillary mucinous neoplasm (IPMN) is a distinct subset of MCN that is being recognized with increasing frequency.
August 27, 2007
CT
Atlas of Gastrointestinal Imaging, Chapter 5 -- The Colon and Rectum
Imaging evaluation of the large intestine has undergone remarkable advances over the past decade, particularly with the advent of CT colonography (CTC, also referred to as virtual colonoscopy). Optical colonoscopy (also referred to as conventional or invasive colonoscopy) and CTC allow for complementary diagnostic evaluation of the colonic mucosa.
August 27, 2007
CT
Atlas of Gastrointestinal Imaging, Chapter 4 -- The Mesenteric Small Bowel
Mesenchymal tumors are a heterogeneous group of intramural lesions that arise deep to the mucosa.
August 27, 2007
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Atlas of Gastrointestinal Imaging Figure 1.3.4 IPMN with invasive carcinoma
August 26, 2007
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Atlas of Gastrointestinal Imaging Figure 1.3.3 Side branch IPMN
August 26, 2007
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Atlas of Gastrointestinal Imaging Figure 1.3.2 Pancreas divisum with dorsal duct IPMN
August 26, 2007
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Atlas of Gastrointestinal Imaging Figure 1.3.1 Main duct IPMN
August 26, 2007
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Atlas of Gastrointestinal Imaging FIGURE 2.1.7 Rectal fistulas complicating ulcerative colitis
August 26, 2007
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Atlas of Gastrointestinal Imaging FIGURE 2.1.6 Dysplasia and carcinoma in long-standing ulcerative colitis
August 26, 2007
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Atlas of Gastrointestinal Imaging Figure 2.1.5 Long-Standing ulcerative colitis
August 26, 2007
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Nuclear Medicine
LLMs rapidly evolving in nuclear medicine
Large language models (LLMs) are widely used to handle the large volume of text data generated in nuclear medicine.
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LLMs rapidly evolving in nuclear medicine
By Will Morton
Large language models (LLMs) are widely used to handle the large volume of text data generated in nuclear medicine.
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An MRI technique that corrects for fat in the liver appears to perform comparably to MRE for detecting fibrosis.
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Ghost scans problematic in POCUS trauma exams
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Rates of ghost scans -- where POCUS images are not saved -- vary by imaging facility, but are high overall in emergency settings.
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Yale University researcher developed a decision-analytic model to estimate lifetime cost outcomes associated with PSMA-PET.
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Median pain scores dropped for 27 patients from nine to one after five months.
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HPI study, online tool identify and predict cancer disparities
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Kalpana Kanal, PhD, of the University of Washington Medical Center in Seattle, spoke to AuntMinnie about forensic CT.
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This image depicts comminuted skull fractures sustained in a pedestrian motor vehicle accident. These are difficult to document by a standard autopsy because the individual fragments are displaced during the internal examination and dissection of the head.
Radiomics plus DL improve prediction of lung cancer invasiveness
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This combined model could support better treatment planning for patients with early-stage disease.
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False-negative screening exams are rising among women, influenced by patient- and facility-level factors.
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A lack of faculty expertise and less time in education curricula may hinder radiologist participation in global health efforts.
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Researchers performed the first direct comparisons of two emerging techniques for treating arteriovenous malformations (AVMs).
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Preop MRI lessens younger women's risk of breast cancer recurrence
By Amerigo Allegretto
Preoperative MRI may lead to lower risk of ipsilateral in-breast recurrence in younger women with newly diagnosed breast cancer.
October 21, 2025
Images in a 49-year-old patient originally treated for hormone receptor-positive invasive cancer without preoperative MRI who developed bloody nipple discharge two years after surgery. (A) Left mediolateral oblique mammogram shows new grouped pleomorphic calcification (arrow) adjacent to the previous operation site. (B) Transverse ultrasound image shows a 2.3-cm hypoechoic mass (arrows) with calcifications. (C) Axial contrast-enhanced fat-saturated T1-weighted MRI scan shows an irregular, heterogeneously enhancing mass (arrow) in the left breast, adjacent to the operation site. The final pathologic examination confirmed recurrent invasive ductal carcinoma.
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