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Abstract:

The article describes results of analysis of five years of experience in the use of magnetic resonance angiography in the diagnosis of lesions of lower limb arteries. This method was used in survey of 489 patients with lesions of the abdominal aorta, arteries of the pelvis and lower limbs. Coverage of this study patients with abnormal lower limb arteries was 14.8%. Features of MR angiographic imaging, advantages and limitations of the method, the relationship with the method X-ray angiography are discussed.

 

 

 

Abstract:

Aim: was to show the role and possibilities of 128-slice computed tomography (MSCT) iirfhe dynamic observation of patients; after open and endovascular surgery of lower limb's arteries;

Material and methods: 1st group - 36 patients (30,5%) who (underwent endovascular procedures;, 2nd group - 51 patients; (44,2%) who underwent open reconstructive operations;, 3rd group - 31 patients; (26,3%) after hybrid operations;. 108 patients; were examined in post-operative period (7 women, 101 men), average age was 57,28±15,08. All patients underwent MSCT-angiography on the background of the contrast bolus;. 55 patients; had standard procedure, other patients; underwent examination with low-close protocol.

Results: obtained images of low-close protocol had satisfactory condition of information: arterial walls were visualized well, inner lumen and para-prosthesis space, atherosclerotic lesions were also visualized. Obtained results of MSCT-angiography during low-dose protocol were confirmed ntraoperatively Obtained data of MSCT-angiography: all patients; of 1st group had passable stents; but 2 patients; who had hernodynarnically non-significant stenosis. In 2nd group 5 patents; had restenosis of prosthesis and grafts;, 20 patients; had thrombosis. In 3rd group, 2 patients; had restenosis of prosthesism femoral-popliteal segment, 13 patient had thrombosis of prosthesis/grafts, 6 patients; had restenosis of stents;, 1 patient had stent thrombosis in femoral-popliteal segment, n case of hernodynarnically significant stenosis (50%) of the stent or prosthesis in the absence of clinical manifestations; we made correction of drug therapy. If the patent had a detected boundary stenosis (50-74%) with the absence of complaints;, the patient had correction of drug therapy, with the appointment of a dynamic MSCT-angiography in 3-6 months. Patents; with occlusion of the prosthesis, or a stent with a satisfactory distal vessels clue to good collaterals; we performed thrombectomy or repeated prosthetics. Patients who according to the MDCT-angiography, had identified thrombosis of prosthesis/grafts with poor distal vessels, absence of good collaterals; and the presence of clinical manifestations; of critical ischemia - amputation of the affected limb.

Conclusion: MSCT-angiography is a highly informative method of nornnvasive imaging of patency of stent, prosthesis/graft of mam arteries; of lower limbs;. Our study showed that using of a low-close protocol is; possible for the dynamic monitoring of patents; for the detection of postoperative complications;, early diagnosis and prevention of restenosis and thrombosis of prosthesis/grafts and stents Timely diagnosis of stenosis of stents; or grafts/prostheses of mam arteries; of lower limbs can determine tactics; and stages; of surgery (endovascular treatment, and re-open reconstructive vascular surgery, thrombectomy), not leading to the patient’s; disability. 

 

References

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