| Autor: |
Esterson YB; Department of Radiology, Northwell Health System, Hofstra Northwell School of Medicine, 300 Community Drive, Manhasset, NY, 11030, USA. YEsterson@northwell.edu., Berkowitz JL; Department of Radiology and Imaging, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA., Friedman B; Department of Radiology, Northwell Health System, Hofstra Northwell School of Medicine, 300 Community Drive, Manhasset, NY, 11030, USA., Hines JJ; Department of Radiology, Northwell Health System, Hofstra Northwell School of Medicine, 300 Community Drive, Manhasset, NY, 11030, USA., Shah PK; Department of Radiology, Northwell Health System, Hofstra Northwell School of Medicine, 300 Community Drive, Manhasset, NY, 11030, USA., Grimaldi GM; Department of Radiology, Northwell Health System, Hofstra Northwell School of Medicine, 300 Community Drive, Manhasset, NY, 11030, USA. |
| Abstrakt: |
Non-contrast chest CT scans are commonly performed while CT scans of the abdomen and pelvis are performed in a select subset of patients; those with limited renal function, an allergy to iodinated contrast, in the setting of suspected renal calculus, retroperitoneal hematoma, common duct calculus, abdominal aortic aneurysm with or without rupture, and in patients undergoing a PET-CT scan. In the absence of intravenous contrast, vascular structures may prove challenging to evaluate, yet their assessment is an important component of every non-contrast CT examination. We describe the key imaging features of both arterial and venous pathology, and review clues and common associated non-vascular findings, which can help the radiologist identify vascular disorders at non-contrast CT. Briefly, alternative imaging options are discussed. |
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