Low Contrast Dose Catheter-Directed CT Angiography (CCTA)

Journal Article · Fri Apr 15 04:00:00 EDT 2016 · Cardiovascular and Interventional Radiology

DOI:https://doi.org/10.1007/S00270-015-1232-Y· OSTI ID:22642551

Formosa, Amanda; Marcuzzi, Daniel; Common, Andrew A.; Prabhudesai, Vikramaditya ^[1]

---

1. St. Michael’s Hospital, University of Toronto, VIR Division, Department of Medical Imaging (Canada)

PurposeCatheter-directed computed tomography angiography (CCTA) has been shown to reduce the contrast volumes required in conventional CTA, thus minimizing the risk of contrast-induced nephropathy (CIN).Materials and MethodsA retrospective analysis was performed on cases where CCTA was used to assess access vessels prior to transfemoral aortic valve implantation (TAVI, n = 53), abdominal aortic aneurysm assessment for endovascular aneurysm repair (EVAR, n = 11), and peripheral vascular disease (PVD, n = 24).ResultsWe show that CCTA can image vasculature with adequate diagnostic detail to allow assessment of lower extremity disease, anatomic suitability for EVAR, as well as potential contraindications to TAVI. Average contrast volumes for pre-TAVI, pre-EVAR, and PVD cases were 7, 11, and 28 mL, respectively.ConclusionThis study validates the use of CCTA in obtaining diagnostic images of the abdominal and pelvic vessels and in imaging lower extremity vasculature.

• OSTI ID: 22642551
• Journal Information: Cardiovascular and Interventional Radiology, Journal Name: Cardiovascular and Interventional Radiology Journal Issue: 4 Vol. 39; ISSN 0174-1551; ISSN CAIRDG
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
BIOMEDICAL RADIOGRAPHY
BLOOD VESSELS
COMPUTERIZED TOMOGRAPHY
DOSES
HAZARDS
IMAGES
PHYSICAL VAPOR DEPOSITION
REPAIR
VASCULAR DISEASES