In-stent hypodense area at two weeks following carotid artery stenting predicts neointimal hyperplasia after two years
| Autor: | Tatsuya Kuroda, Yasuhiko Kaku, Jouji Kokuzawa, Morio Kumagai, Kentaro Yamashita, Satoru Murase |
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| Rok vydání: | 2017 |
| Předmět: |
Male
medicine.medical_specialty Time Factors medicine.medical_treatment Carotid arteries 030204 cardiovascular system & hematology 03 medical and health sciences Imaging Three-Dimensional 0302 clinical medicine Restenosis Predictive Value of Tests Cerebrovascular Imaging Humans Medicine Carotid Stenosis Radiology Nuclear Medicine and imaging Longitudinal Studies cardiovascular diseases Aged Retrospective Studies Computed tomography angiography Aged 80 and over Neointimal hyperplasia Hyperplasia medicine.diagnostic_test business.industry Angiography Digital Subtraction Stent General Medicine Middle Aged equipment and supplies medicine.disease Cerebral Angiography Stenosis Regression Analysis Female Stents Neurology (clinical) Radiology business 030217 neurology & neurosurgery Arterial lumen |
| Zdroj: | The Neuroradiology Journal. 31:280-287 |
| ISSN: | 2385-1996 1971-4009 |
| DOI: | 10.1177/1971400917727006 |
| Popis: | Introduction It has not been reported how long the follow-up study after carotid artery stenting (CAS) should be continued. The purpose of the present study is to clarify the dynamic change of the in-stent neointimal layer and residual arterial lumen by two years following CAS using three-dimensional computed tomography angiography (3D CTA) with volume rendering. Methods Thirty-six stented carotid arteries in 34 consecutive patients were examined by 3D CTA with volume rendering at two weeks and 3, 6, 12, 24 months of follow-up. Results An in-stent hypodense area could be detected in 10 of 36 (27.8%) carotid arteries at two weeks after CAS. In-stent hypodense areas gradually declined thereafter by three months. In the course of longer follow-up, the layer of the in-stent hypodense area (neointimal hyperplasia) continued to grow in size for up to 24 months. Patients with an in-stent hypodense area at two weeks have a thicker layer of neointimal hyperplasia at 24 months than patients without in-stent hypodense area at two weeks’ follow-up. The predictive factors for growing neointimal hyperplasia at 24 months in multiple regression analysis are ulcer formation in pretreatment stenosis and the thickness of in-stent hypodense area at two weeks following CAS. Conclusion Our results suggest that follow-up study should be continued for a longer period even if in-stent restenosis could not be detected at one year following CAS. Especially in cases with ulcer formation in pretreatment stenosis and with a subacute in-stent hypodense area after CAS, longer follow-up is strongly recommended. |
| Databáze: | OpenAIRE |
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