AJR. American journal of roentgenology
-
AJR Am J Roentgenol · Apr 2021
CT attenuation values do not reliably distinguish benign sclerotic lesions from osteoblastic metastases in patients undergoing bone biopsy.
BACKGROUND. CT attenuation thresholds that accurately distinguish enostoses from untreated osteoblastic metastases have been published. In the Mayo Clinic practices, these thresholds have been applied more broadly to distinguish benign sclerotic bone lesions other than enostoses from osteoblastic metastases. ⋯ CLINICAL IMPACT. Published CT attenuation thresholds intended for distinguishing enostoses from osteoblastic metastases should not be used more broadly. More accurate alternative thresholds could not be derived.
-
AJR Am J Roentgenol · Apr 2021
Multisystem Assessment of the Imaging Manifestations of Coagulopathy in Hospitalized Patients With Coronavirus Disease (COVID-19).
BACKGROUND. Coronavirus disease (COVID-19) is known to be associated with a distinct form of coagulopathy. OBJECTIVE. ⋯ Clinical variables poorly predict which patients have positive imaging results, indicating a complementary role of imaging in detecting COVID-19-associated coagulopathy. CLINICAL IMPACT. In patients with COVID-19 with suspected systemic coagulopathy, pulmonary CTA, extremity Doppler ultrasound, contrast-enhanced abdominal CT, and contrast-enhanced brain MRI and MRA may all be appropriate in the absence of imaging contraindications.