Bài viết trình bày mô tả các đặc điểm hình ảnh của bệnh cơ tim phì đại trên hình cộng hưởng từ (CHT); Đánh giá sự phân bố, dạng bắt thuốc và độ rộng của tổn thương xơ trên xung bắt thuốc tương phản thì muộn; Mối tương quan giữa các chỉ số chức năng, độ dày thành và bắt thuốc thì muộn về dạng bắt thuốc và mức độ lan rộng. | KHẢO SÁT ĐẶC ĐIỂM HÌNH ẢNH NGHIÊN CỨU KHOA HỌC BẮT THUỐC THÌ MUỘN TRÊN CỘNG SCIENTIFIC RESEARCH HƯỞNG TỪ CỦA BỆNH CƠ TIM PHÌ ĐẠI Late myocardial enhancement in hypertrophic cardiomyopathy with contrast-enhanced MR imaging Mai Thanh Thảo Nguyễn Đại Hùng Linh Trần Thị Mai Thùy Phan Công Chiến SUMMARY Objective To describe the characteristics of hypertrophic cardiomyopathy on Magnetic resonance imaging to evaluate the loacation pattern and extent of late gadolinium enhancement LGE to evaluate the relationship among left ventricular function end diastolic wall thickness and LGE about pattern and extent. Materials and Methods Cine imaging and delayed enhancement imaging were performed in 27 patients with HCM on a 3 Tesla MRI unit Siemens Verio at the University Medical Center Hospital between January 2016 and June 2020. Global left ventricular function was quantified using a Argus function software of Siemens Healthineers. The location pattern and extent of DE were evaluated. Results Global left ventricular function and mass calculations yielded a mean SD for ejection fraction of an end-diastolic volume of and a left ventricular mass of . Diffuse hypertrophy was present in 12 patients asymmetric septal hypertrophy in 11 patients and apical hypertrophy in 4 patients . LGE occurred in 24 patients and in 164 segments most commonly in the anteroseptal and inferoseptal segments. LGE was detected in an ill-defined patchy pattern in and in a focal nodular pattern in enhanced segments. LGE with an extent 50 was observed in 61 segments and that with an extent lt 50 was observed in 103 segments . There were significant difference in EF between the LGE-positive patients and the LGE-negative patients p . The myocardial wall was thicker in the enhanced segments than in the non-enhanced segments p lt . No significant difference was found in wall thicker of segments between ill-defined patchy pattern
