Figure 1: CTA a. axial & b. sagittal images showing a large defect in the inter-ventricular septum (blue arrow). c. axial image showing narrowing in the.

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Presentation transcript:

Figure 1: CTA a. axial & b. sagittal images showing a large defect in the inter-ventricular septum (blue arrow). c. axial image showing narrowing in the infundibular part of the main pulmonary artery (blue arrow). d. sagittal & e. VR image showing a communication between aortic arch and left pulmonary artery (blue arrows). f. VR & g. axial images showing left sided aortic arch and a hypoplastic right arch (blue arrows) forming a complete vascular ring. h. MIP image showing vascular ring compressing the trachea.

Figure 2: CTA a. axial & b. VR images showing right sided (blue arrow) and left sided (white arrow) aortic arches joining together to form a complete vascular ring. c. & d. VR images showing the right subclavian and right common carotid arteries originating from right sided aortic arch and left subclavian and left common carotid artery originating from the left sided aortic arch. e. VR image showing the vascular ring compressing the trachea (blue arrow) and associated narrowing of right and left main bronchi in their proximal part. f. axial image showing consolidation lower lobes of both lungs.

Figure 3: CTA a. axial image showing a defect in inter-atrial septum (blue arrow). b. sagittal & c. VR image showing common origin of aorta and left pulmonary artery (blue arrows). d. VR image showing the duct dependent origin of the right pulmonary artery (blue arrow) and aortic arch on the right side of the trachea. e., f. VR & g. axial images showing left subclavian artery (blue arrows) arising as the last branch of right sided aortic arch and taking a retroesophageal course and forming an incomplete vascular ring. h. VR image showing the left subclavian artery causing mild tracheal compression.

Figure 4: CTA a. axial, b. coronal c. & d Figure 4: CTA a. axial, b. coronal c. & d. VR images showing right subclavian artery (blue arrows) which is arising as a last branch of left sided aortic arch and taking a retroesophageal course. The left vertebral and left subclavian arteries are seen to originate separately from arch of aorta. e. MIP image showing minimally compressed trachea. f. VR image showing associated congenital scoliosis.

Figure 5: CTA a. axial image showing mediastinal shift towards right with hypertrophy of right atrium and right ventricle and non- visualization of right sided pulmonary vasculature. b. axial & c. VR images showing left pulmonary artery (blue arrow) forming a sling around the trachea (white arrow). d. & e. VR images showing right sided aortic arch and descending aorta with right brachiocephalic artery (white arrow) causing compression of trachea. f. VR image showing tracheal narrowing (blue arrow).

Figure 6: CTA a. axial image showing a defect in inter-ventricular septum b. axial image showing stenosis of main pulmonary artery (white arrow). c. axial image showing dilated right pulmonary artery (blue arrow) compressing the right main bronchus (white arrow). d., e. MIP & f. VR images showing compression of right main bronchus by dilated right pulmonary artery (white arrow).

Figure 7: CTA a. axial image showing VSD. b & c Figure 7: CTA a. axial image showing VSD. b & c. axial and coronal images showing aneurismal dilatation of right pulmonary artery. d. coronal VR image showing narrowing of right main bronchus.