Manke, Christoph and Nitz, Wolfgang R. and Djavidani, Behrus and Strotzer, Michael and Lenhart, Markus and Voelk, Markus and Feuerbach, Stefan and Link, Johann (2001) MR imaging-guided stent placement in iliac arterial stenoses: A feasibility study. RADIOLOGY, 219 (2). pp. 527-534. ISSN 0033-8419
Full text not available from this repository. (Request a copy)Abstract
PURPOSE: To assess the feasibility of magnetic resonance (MR) imaging-guided stent placement in iliac arterial stenoses. MATERIALS AND METHODS: Thirteen patients with 14 iliac arterial stenoses were examined prospectively. Angioplasty was performed through a femoral sheath by using a conventional 1.5-T MR imaging system. Stents and catheters were visualized on the basis of their artifacts. Nitinol stents were placed with gradient-echo MR imaging guidance. Angioplasty balloons were inflated with gadolinium-based contrast material. Results were evaluated clinically and with both digital subtraction angiography (DSA) and contrast material-enhanced MR angiography. RESULTS: Ten of 13 patients were treated with technical success by using MR imaging-guided intervention alone. Three patients were treated with additional fluoroscopic guidance, because complications tie, panic attack, subintimal recanalization, and stent misplacement) occurred with MR guidance. The quality of the postinterventional contrast-enhanced MR angiograms of three of 12 lesions with stents was limited owing to stent-induced signal loss of the lumen. The mean stenosis degree after stent placement was significantly higher at contrast-enhanced MR angiography than at DSA (24.6% vs 6.2%). The mean MR imaging-guided procedure time was 74 minutes. CONCLUSION: MR imaging-guided stent placement in iliac arteries is feasible in select patients. The presented technique has limitations-that is, long procedure times, lack of real-time monitoring, and stent artifacts-that necessitate further modifications before it can be recommended for clinical use.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PERCUTANEOUS TRANSLUMINAL ANGIOPLASTY; MAGNETIC-RESONANCE ANGIOGRAPHY; ENDOVASCULAR INTERVENTIONS; OCCLUSIVE DISEASE; ABDOMINAL-AORTA; FOLLOW-UP; MODEL; EXPERIENCE; CATHETER; DEVICES; angiography, comparative studies; arteries, grafts and prostheses; arteries, stenosis or obstruction; arteries, transluminal angioplasty; magnetic resonance (MR), vascular studies |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Röntgendiagnostik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 01 Feb 2022 08:13 |
| Last Modified: | 01 Feb 2022 08:13 |
| URI: | https://pred.uni-regensburg.de/id/eprint/41480 |
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