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Updated: Sep 29, 2026

Magnetic Resonance Imaging Quantification of Pulmonary Perfusion using Calibrated Arterial Spin Labeling
Published on: May 30, 2011
[Comparative study of pulmonary magnetic resonance angiography (MRA)]
1Department of Radiology, Xiangya Hospital, Hunan Medical University, Changsha 410008.
Abstract:
Imaging was performed using a 1.0 Tesla superconducting MR system with a body coil. Two-dimensional(2D) turbo FLASH sequence and/or three-dimensional(3D) FISP sequence were carried out in 46 volunteers with 113 pulmonary MRA. The total MRAs were divided into 4 groups and analysed. The results showed: After Gd-DTPA was injected, the signal-to-noise ratio(SNR) of pulmonary 2D- and 3D-TOF MRA was increased in 46 normal pulmonary MR angiography cases(P < 0.01); the number of left and right pulmonary artery divisions identified was much greater than that before Gd-DTPA injection both in 2D- and 3D-MOF(except lingual segment of left lobe). It is suggested that Gd-DTPA may markedly promote the efficiency of pulmonary MRA.
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