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Fig. 1A —Patient 1 in Table 1.
Coronal maximum-intensity-projection (MIP) images from time-resolved 3D
gadolinium-enhanced gradient-echo subtraction MR angiogram (TR/TE, 3.4/1.3;
25° flip angle; temporal resolution, 6 sec) in 72-year-old woman who had
malfunctioning arteriovenous fistula (AVF). Image obtained immediately after
injection of gadopentetate dimeglumine shows right heart and pulmonary artery
vasculature free of contrast material in systemic circulation. Due to high
temporal resolution, acquisition occurred when contrast material reached
pulmonary circulation during its first pass. Unenhanced data set had been
subtracted from pulmonary arterial phase data set to reduce background signal
intensity.
