Dr. J. Leonard Lichtenfeld

CT
CT colonography and Medicare: Are we the enemy?
In this editorial opinion, Dr. Len Lichtenfeld, deputy chief medical officer for the American Cancer Society, outlines his concerns over an editorial in the New England Journal of Medicine praising the decision by the U.S. Centers for Medicare and Medicaid Services not to cover CT colonography -- as well as his objections to the CMS decision itself.
June 23, 2009
2009 06 23 14 37 33 976 Second Opinion Am
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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.
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Radiology CSI: CT helps medical examiners determine cause of death
Kalpana Kanal, PhD, of the University of Washington Medical Center in Seattle, spoke to AuntMinnie about forensic CT.
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Radiology CSI: CT helps medical examiners determine cause of death
By Kate Madden Yee
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.
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By Kate Madden Yee
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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By Amerigo Allegretto
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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By Amerigo Allegretto
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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.
MRI predicts diabetes in obese patients
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Researchers found a dose-response relationship between MRI-derived liver proton density fat fraction and abnormal glucose metabolism.
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2025 10 21 Liver Mri Derived Proton Density Fat Fraction Thumbnail
Consider global lung features on LDCT to improve cancer risk prediction
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Integrating these features into a lung cancer prediction model "addresses key limitations of existing approaches," researchers explained.
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2025 10 21 Radiology Lin Figure6 Thumbnail
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Cardiac POCUS training leads to success for neonatal transport teams
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Training leads to successful image acquisition and congenital heart disease diagnosis in infants for transport team members.
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