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
Results
Results
- Overall,
inter-observer agreement for all measurements was excellent with intra-class correlation coefficient for all measurements of 0.978.
- Correlation at each region has been tabulated.
(Table 1).
- When comparing 2D and 3D techniques,
3 regions demonstrated a statistically significant difference:
- Annulus (p = 0.000 )
- Ascending aorta at the level of RPA (p = 0.000 )
- Arch of aorta between LC and LSC. (p = 0.001)
- The annulus was particularly difficult to measure in the 3D image acquisition due to substantial artifact.
- Although these regions demonstrated a statistically significant difference,
the average difference between techniques was a fraction of a millimeter and,
in clinical practice,
this would not be considered significant.
- Overall,
6 out of 9 regions demonstrated no statistically significant difference between techniques.
(Table 2).
- On average,
measurements for males were significantly larger than those for females.
- Separate normal reference ranges have been calculated for males and females.
(Tables 3-5).