Nicola Schieda1, Evan S Siegelman2. 1. 1 Department of Radiology, The Ottawa Hospital, The University of Ottawa, 1053 Carling Ave, Civic Campus C1, Ottawa, ON K1Y 4E9, Canada. 2. 2 Department of Radiology, Hospital of the University of Pennsylvania, University of Pennsylvania, Philadelphia, PA.
Abstract
OBJECTIVE: The objective of this article is to review the current role of CT and MRI for the characterization of adrenal nodules. CONCLUSION: Unenhanced CT and chemical-shift MRI have high specificity for lipid-rich adenomas. Dual-energy CT provides comparable to slightly lower sensitivity for the diagnosis of lipid-rich adenomas but may improve characterization of lipid-poor adenomas. Nonadenomas containing intracellular lipid pose an imaging challenge; however, nonadenomas that contain lipid may be potentially diagnosed using other imaging features. Multiphase adrenal washout CT can be used to differentiate lipid-poor adenomas from metastases but is limited for the diagnosis of hypervascular malignancies and pheochromocytoma.
OBJECTIVE: The objective of this article is to review the current role of CT and MRI for the characterization of adrenal nodules. CONCLUSION: Unenhanced CT and chemical-shift MRI have high specificity for lipid-rich adenomas. Dual-energy CT provides comparable to slightly lower sensitivity for the diagnosis of lipid-rich adenomas but may improve characterization of lipid-poor adenomas. Nonadenomas containing intracellular lipid pose an imaging challenge; however, nonadenomas that contain lipid may be potentially diagnosed using other imaging features. Multiphase adrenal washout CT can be used to differentiate lipid-poor adenomas from metastases but is limited for the diagnosis of hypervascular malignancies and pheochromocytoma.
Authors: Nicola Schieda; Matthew S Davenport; Ivan Pedrosa; Atul Shinagare; Hersch Chandarana; Nicole Curci; Ankur Doshi; Gary Israel; Erick Remer; Jane Wang; Stuart G Silverman Journal: J Magn Reson Imaging Date: 2019-01-28 Impact factor: 4.813
Authors: Joseph M Pappachan; Nyo Nyo Tun; Ganesan Arunagirinathan; Ravinder Sodi; Fahmy W F Hanna Journal: Curr Hypertens Rep Date: 2018-01-22 Impact factor: 5.369
Authors: Filip Ctvrtlik; Zbynek Tudos; Paulina Szasz; Zuzana Sedlackova; Igor Hartmann; Jan Schovanek; Zdenek Frysak; Iva Macova; Tomas Zelinka; Milan Hora; Eva Kocova; Jaroslav Pacovsky; Michal Krsek; Viera Lehotska; Emilia Mojtova; Josef Molnar; Vladimir Vanek; Karel Pacak; Jan Baxa Journal: Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub Date: 2019-09-23 Impact factor: 1.245