Magnetic resonance imaging · 2025
Evaluation of vascular calcification and Vessel Wall in patients with lower extremity artery disease using CT-like imaging.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Hatakeyama Hidehisa, Sakai Takayuki, Suzuki Sakuramaru, Murayama Daichi, Itou Hajime, Ochi Shigehiro
Аннотация
PURPOSE: Lower extremity artery disease (LEAD), a major manifestation of peripheral arterial disease (PAD), is significantly influenced by vascular calcification, which impacts treatment outcomes. This study evaluates the feasibility of CT-like imaging using 3D multi-echo T2*-weighted image (T2*WI) for assessing vascular calcifications and vessel wall area in patients with LEAD.
MATERIALS AND METHODS: A 3.0 T MRI system was used to acquire CT-like images from 20 patients with LEAD (median age: 75.0 years). Vascular calcifications were assessed in 10 patients who had previously undergone non-contrast CT, while vessel wall area was evaluated in another 10 patients using three-dimensional (3D) fat-suppressed T1-weighted turbo spin-echo (FS-T1 TSE).
RESULTS: CT-like imaging demonstrated moderate agreement with non-contrast CT for the visual assessment of vascular calcifications (κ = 0.75) and a strong correlation for the quantitative evaluation of calcification (r = 0.91-0.96). Bland-Altman analysis showed minimal bias in vessel wall area measurements between CT-like imaging and FS-T1 TSE.
CONCLUSION: CT-like imaging is a feasible technique for assessing vascular calcifications and vessel wall area in patients with LEAD. The absence of radiation exposure makes it a promising alternative to CT for vascular evaluation.
MATERIALS AND METHODS: A 3.0 T MRI system was used to acquire CT-like images from 20 patients with LEAD (median age: 75.0 years). Vascular calcifications were assessed in 10 patients who had previously undergone non-contrast CT, while vessel wall area was evaluated in another 10 patients using three-dimensional (3D) fat-suppressed T1-weighted turbo spin-echo (FS-T1 TSE).
RESULTS: CT-like imaging demonstrated moderate agreement with non-contrast CT for the visual assessment of vascular calcifications (κ = 0.75) and a strong correlation for the quantitative evaluation of calcification (r = 0.91-0.96). Bland-Altman analysis showed minimal bias in vessel wall area measurements between CT-like imaging and FS-T1 TSE.
CONCLUSION: CT-like imaging is a feasible technique for assessing vascular calcifications and vessel wall area in patients with LEAD. The absence of radiation exposure makes it a promising alternative to CT for vascular evaluation.