CTA Coronary Arteries (CCTA) — Dictation, Appropriateness, and Dose for Residents
ECG-gated contrast-enhanced CT of the coronary arteries with strict heart-rate control and beta-blocker preparation. Quantifies anatomic stenosis…
Tag: radiation dose
CT Coronary Calcium Score — Dictation, Appropriateness, and Dose for Residents
Non-contrast, ECG-gated CT of the heart that quantifies coronary artery calcification. The Agatston score stratifies atherosclerotic cardiovascular…
CTA Chest (Thoracic Aorta) — Dictation, Appropriateness, and Dose for Residents
Contrast CT angiography of the thoracic aorta, ECG-gated when possible, from arch through diaphragmatic crus. The diagnostic gateway for aortic…
CT Lung Cancer Screening (Low-Dose) — Dictation, Appropriateness, and Dose for Residents
Annual ultra-low-dose non-contrast CT of the chest in eligible heavy smokers. Reduced lung cancer mortality in NLST and NELSON trials; CMS-funded since…
HRCT Chest (High-Resolution) — Dictation, Appropriateness, and Dose for Residents
Thin-slice non-contrast CT of the lungs at end-inspiration with optional expiratory and prone phases. The diagnostic gold standard for interstitial lung…
CT Chest Without Contrast — Dictation, Appropriateness, and Dose for Residents
Non-contrast CT of the chest for pulmonary nodule follow-up, lung parenchymal disease evaluation, and patients in whom contrast is contraindicated. Often…
CT Chest with IV Contrast — Dictation, Appropriateness, and Dose for Residents
Single-acquisition contrast-enhanced CT of the chest in portal venous phase. Workhorse for chest masses, pneumonia evaluation, mediastinal pathology,…
CT 4D Parathyroid — Dictation, Appropriateness, and Dose for Residents
Multiphase contrast CT of the neck and upper mediastinum exploiting unique enhancement kinetics of parathyroid adenomas — rapid arterial enhancement and…
CT Facial Bones — Dictation, Appropriateness, and Dose for Residents
High-resolution non-contrast CT of the facial bones with sagittal, coronal, and 3D reformats. The diagnostic gold standard for facial trauma evaluation…
CT Orbits — Dictation, Appropriateness, and Dose for Residents
High-resolution CT of the orbits for trauma (fracture, foreign body), orbital cellulitis, mass workup, and proptosis evaluation.