RANZCR ASM 2010 / R-0108
CMRI Measurements and Ranges of the Normal Adult Thoracic Aorta and Main Pulmonary Artery.
This poster was originally presented at the RANZCR Annual Scientific Meeting 2010, October 14-17, in Perth/AU.
Congress:
RANZCR ASM 2010
Keywords:
Cardiac, Arteries / Aorta, Pulmonary vessels, MR
Authors:
A.-A. Mohamed, R. Slaughter, V. Rodriguez, W. Strugnell, H. Bartlett; QLD/AU
DOI:
10.1594/ranzcr2010/R-0108
Purpose
Introduction
- CMRI has been shown to be reliable in the post operative assessment of aortic coarctation.
[1]
- In a previous study MRI measurements of aortic diameter correlated well with angiographically determined aortic diameters.
[2]
- Limited data however exists for measurements of the thoracic aorta and main pulmonary artery in normal adults.
Assessment of Aortic Disease
- Three dimensional contrast enhanced MR angiography (3D CE MRA) is the most widely accepted method for the assessment and follow-up of thoracic aortic disease using MRI.
–This requires the use of contrast media with inherent risk
to the patient.
- 3D navigated SSFP has been shown to be an acceptable alternative for the follow-up of patients with aortic disease. [3]
Assessment of Main Pulmonary Artery
- The diameter of the main pulmonary artery is used in the assessment of patients with pulmonary arterial hypertension and prior to surgical procedures involving the pulmonary valve and main pulmonary artery.
- 2D SSFP MRI is useful for the assessment of pulmonary artery diameter and morphology.
[4]
Purpose
- To obtain a range of normal measurements of the adult thoracic aorta and main pulmonary artery.
- To assess agreement between measurements made on two-dimensional (2D) and three dimensional (3D) Steady State Free Precession (SSFP) cine image acquisitions.