Coronary MRA

High Resolution Spiral MRA

• Breath-held (18 sec.)
• 2 D Slice (5 mm.)
• Non-contrast Enhanced
• 20 x 4096 Matrix
• 0.52 mm. / pixel resolution

Vessel-Tracked Spiral	Vessel-Tracked fGRE	2D Spiral NAV

BH Spiral	3D NAV Images Courtesy of NIH Radiology

A Family of Techniques

• 2D Breath-held Spiral
• 2D non-breath-held Spiral Fastcard and Spiral
• 2D vessel-tracked Fastcard and Spiral
• 3D non-breath-held with NAV correction