Madan M. Rehani, PhD

CT
ESR's EuroSafe Imaging campaign promotes radiation protection
VIENNA - The mission of EuroSafe Imaging is to support and strengthen medical radiation protection across Europe. Europe is unique and has the potential for coordinated radiation safety actions in medical imaging, according to Madan Rehani, PhD, director of radiation protection for the European Society of Radiology (ESR).
March 5, 2014
2014 02 28 17 26 35 902 Rehani Madan 200
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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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