Dr. Andrew D. Lee

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
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Lung Ct Images
CT
Deep learning helps find, segment lung tumors on CT imaging
Using a deep-learning model with lung CT imaging shows promise for identifying and segmenting tumors, researchers have reported.
Stroke Evt
Interventional
EVT promising in patients with extracranial ICA occlusions
Images depict a 49-year-old female participant with cryptogenic cirrhosis who presented with a 3.2-cm liver lesion. This biopsy-confirmed hepatocellular carcinoma (HCC) with an initial categorization of Liver Imaging Reporting and Data System (LI-RADS) category LR-4 (probably HCC) at CT was upgraded to LR-5 (definitely HCC) at contrast-enhanced ultrasound (CEUS). (A) Precontrast CT images in the liver show vague hypoattenuation in the medial left hepatic lobe (arrows). (B) Arterial phase images demonstrate no definite arterial phase hyperenhancement (arrows). (C) Washout and an enhancing capsule (arrows) on a late-phase image resulted in an LR-4 categorization. (D) B-mode ultrasound shows a round hypoechoic nodule (arrows). (E) An early-phase CEUS image shows clear arterial-phase hyperenhancement (arrows); (F) No washout at one minute (arrows), and (G) late, mild washout at four minutes (arrows) resulted in a CEUS LR-5 categorization.
Ultrasound
CEUS resolves indeterminate CT, MRI liver observations
Ctca
Molecular Imaging
PET/CT can rule out CAV in heart transplant patients
Lung Ct Images
CT
Machine learning can predict immunotherapy response in NSCLC patients
More in Home
Deep learning helps find, segment lung tumors on CT imaging
By Kate Madden Yee
Using a deep-learning model with lung CT imaging shows promise for identifying and segmenting tumors, researchers have reported.
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Lung Ct Images
EVT promising in patients with extracranial ICA occlusions
By Will Morton
Endovascular thrombectomy (EVT) and best medical treatment are both effective and safe options for patients with acute extracranial internal carotid artery occlusions.
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Stroke Evt
CEUS resolves indeterminate CT, MRI liver observations
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Contrast-enhanced ultrasound (CEUS) can resolve some high-risk indeterminate liver observations initially seen on CT or MRI.
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Images depict a 49-year-old female participant with cryptogenic cirrhosis who presented with a 3.2-cm liver lesion. This biopsy-confirmed hepatocellular carcinoma (HCC) with an initial categorization of Liver Imaging Reporting and Data System (LI-RADS) category LR-4 (probably HCC) at CT was upgraded to LR-5 (definitely HCC) at contrast-enhanced ultrasound (CEUS). (A) Precontrast CT images in the liver show vague hypoattenuation in the medial left hepatic lobe (arrows). (B) Arterial phase images demonstrate no definite arterial phase hyperenhancement (arrows). (C) Washout and an enhancing capsule (arrows) on a late-phase image resulted in an LR-4 categorization. (D) B-mode ultrasound shows a round hypoechoic nodule (arrows). (E) An early-phase CEUS image shows clear arterial-phase hyperenhancement (arrows); (F) No washout at one minute (arrows), and (G) late, mild washout at four minutes (arrows) resulted in a CEUS LR-5 categorization.
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Ctca
Machine learning can predict immunotherapy response in NSCLC patients
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Machine learning (ML) can help clinicians predict immunotherapy response in patients with inoperable non-small cell lung cancer (NSCLC).
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Lung Ct Images
Current topics in mammography
By Sandy Coffta
Sandy Coffta of Healthcare Administrative Partners discusses changes in reporting and reimbursement for mammography exams.
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Coffta Sandy Thumbnail
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Wine Red Glass 400
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Fapi Pet Gastric Cancer Thumbnail
CEM has slightly higher mean glandular dose than DBT, mammography
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Contrast-enhanced mammography (CEM) has a slightly higher mean glandular dose than other breast imaging modalities.
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Contrast Injector
ACS: Cancer mortality continues to drop
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Cancer mortality rates continue to drop -- although incidence of the disease is rising in women, according to an annual study released by the ACS.
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Cancer Cell Target2
POCUS useful for diagnosis of retained conception tissue
By Amerigo Allegretto
Point-of-care ultrasound (POCUS) can be a useful tool for diagnosing the presence of retained conception tissue.
January 15, 2025
Ultrasound Portable
Top 5 predictions for the imaging IT and AI markets in 2025
By Amy Thompson
Amy Thompson of Signify Research shares five predictions for the Imaging IT and AI markets in a new column.
January 15, 2025
2025 Trends Concept
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