By Dr. Shankar Sridharan, Gemma Price, Dr. Oliver Tann, Dr. Marina Hughes, Dr. Vivek Muthurangu, Professor Andrew M. Taylor (auth.)
This new and precise medical source deals fast entry to top quality photographs protecting a huge spectrum of paediatric and grownup cardiac pathologies visualized utilizing MRI and CT. Key pictures of every situation and a transparent interpretation in their MR appearances permit for higher knowing of the pathology. concentration is given to the making plans of imaging planes, thoughts and sequences to acquire the easiest photos and increase MR evaluation. this article would get advantages all wellbeing and fitness pros all in favour of imaging congenital cardiac disease.
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Extra resources for Cardiovascular MRI in Congenital Heart Disease: An Imaging Atlas
Assess ventricular function, volumes and LV mass (may be increased 2° LVOTO or hypertension). Measure peak CoA velocity, look for diastolic prolongation of forward ﬂow Fig. 1. Contrast-enhanced axial CT showing a transverse fracture through the mid-portion of a coarctation stent. There is a residual moderate coarctation, and marked dilatation of the descending thoracic aorta Fig. 2. Volume rendered 3D reconstruction of a contrast-enhanced CT angiogram showing a coarctation stent with mild residual narrowing (arrow).
A) b-SSFP image oblique coronal view, showing narrow jet of moderate aortic regurgitation. (b) b-SSFP images showing a 4-Ch view of a dilated left ventricle in a patient with aortic regurgitation 18 a Aortic Valve Incompetence c 500 Normal Mild AR Moderate AR 400 Severe AR b Flow volume (mL/s) 300 200 100 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 -100 Time frames -200 Fig. 2. Aortic regurgitation phase contrast velocity mapping, (a) magnitude image aortic valve, (b) phase contrast image above the aortic valve in early diastole showing a narrow jet of regurgitation (high signal).
Place slice in an area of laminar ﬂow, distal to semilunar valve tips. Proximal to the ﬁrst aortic or pulmonary artery branches. Ventricular volume assessment: ¼ b-SSFP images with temporal resolution at least 50 ms. ¼ Use short axis or horizonal long axis slices, with no gap. ¼ A slice-positioning tool improves accuracy of segmentation for basal slices. ¼ Exclude major trabeculae from blood pool. ¼ Manual tracing is currently the most precise processing method for RVSV 35 36 Cardiovascular MRI in Congenital Heart Disease 17 Aortic Valve Stenosis Specify lesion site: sub-valvar, valvar or supra-valvar stenosis (see Williams syndrome).