Article Figures & Data
Figures
- Fig 1.
Skin dose distribution for (A) 3D RA and (B) biplanar DSA. The exposed film is overlaid on a graphic representation of skin surface unfolded from the anterior midline.
- Fig 2.
Volume-rendered 3D RA image after coil embolization of a complex left ophthalmic aneurysm. On biplanar angiography, the coil mass overlapped the parent vessel in both views. The lumen was easily viewed on the reconstructed 3D RA image. During embolization, we used serial 3D RA runs to assess whether each additional coil compromised the lumen of the parent artery.
Tables
Acquisition Mode Rotational Arc Duration (s) Rotational Speed (°/s) Total Frames Acquired Dose Mode 3D-L 5S 5 40 102 Low 3D-H 5S 5 40 102 High 3D-L 8S 8 25 162 Low 3D-H 8S 8 25 162 High 3D-L 14S 14 14 266 Low 3D-H 14S 14 14 266 High C-arm Frames FOV Angulation kVp Cu Filtration (mm) Frontal 18 22-cm 20° CR 75 0 Lateral 18 22-cm 0° CR/CA 73 0.2 Note.—FOV indicates field-of-view; CR, cranial; CA, caudal.
Acquisition Mode Peak Skin Dose (mGy) Cumulative Incident Dose (mGy) 3D-L 5S 3.9 9.4 3D-H 5S 8.4 21 3D-L 8S 6.1 15 3D-H 8S 15 33 3D-L 14S 10 25 3D-H 14S 26 58 Biplane DSA 58 53
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