Technology Report:

Computed Tomography (CT)

RSNA Technology Report 2015: Computed Tomography

Contributing Editor Greg Freiherr offers an overview of computed tomography (CT) advances at the Radiological Society of North America (RSNA) 2015. The video includes Freiherr during his booth tours with some of the key vendors who were featuring new technology.

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Cardiac CTA derived left atrium emptying fraction (LAEF) improves predictive performance of established clinical risk scores and may be used to assess TAVR patient risk during pre-procedure workup and post-procedural surveillance. These images show LAVmax (A and B), LAVmin (C and D), and LAEF using cardiac CTA. LAEF was calculated as (LAVmax-LAVmin)/LAVmax x 100. Given LAVmax of 109 mL and LAVmin of 80 mL, the LAEF was calculated to be 27%. Image courtesy of AJR.
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(A) Pre-procedure axial image from contrast-enhanced CT scan of chest demonstrates a 1 cm solid right upper lobe nodule adjacent to right mainstem bronchus (arrow). (B) Intra-procedural coronal reformatted image shows two cryoablation probes within nodule. (C) 1-month follow-up sagittal chest CT image shows expected post-ablation changes encompassing treated nodule (arrow). (D) 1-year follow-up sagittal chest CT image shows expected involution of treatment zone into flat bandlike scar without residual tumor
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GE Healthcare unveiled Revolution Ascend with Effortless Workflow, offering clinicians a collection of artificial intelligence technologies that automate and simplify time-consuming tasks to increase operational efficiency and free up time for clinicians to deliver more personalized care to more patients.
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Figure 1: MWT Schematic of a typical setup for detecting malignant tissues/tumors.
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Plan to attend RSNA21 at McCormick Place Chicago, Nov. 28 – Dec. 2, 2021
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62-Year-Old Woman Who Underwent Hysterectomy for Uterine Cancer: Sagittal chest CT images demonstrate measurement of right (A) and left (B) lung length at hilar level from apex to diaphragmatic dome. Right lung length was 20.1 cm for reader 1 and 20.0 cm for reader 2; left lung length was 21.7 cm for reader 1 and 21.3 cm for reader 2. Patient did not require postoperative mechanical ventilation.
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