Impact of sublingual nitroglycerin dosage on FFR assessment and coronary luminal volume-to-myocardial mass ratio.

Objectives: Fractional flow reserve computed tomography (FFR) depends upon nitroglycerin (NTG) inducing maximal hyperemia. However, the impact of NTG dosages on FFR analysis including coronary volume-to-mass ratio (V/M) is unknown.

Methods: Eighty patients with repeat coronary CT angiograms (CCTAs) with different sublingual spray NTG doses (0.

The imaging features of nontuberculous mycobacterial immune reconstitution syndrome.

Objective: The purpose was to characterize the spectrum of imaging findings of nontuberculous mycobacterial immune reconstitution syndrome in patients infected with the human immunodeficiency virus.

Methods: A retrospective review of 33 human immunodeficiency virus-infected patients with nontuberculous mycobacterial immune reconstitution syndrome was performed. Radiography, ultrasound, and computed tomography (CT) imaging was reviewed.