• Thứ 4, 03/06/2020
  • (GMT+7)
Cập nhật chụp cắt lớp vi tính trong bệnh lý tim mạch

Cập nhật chụp cắt lớp vi tính trong bệnh lý tim mạch

03/17/2020 10:59:11 | 0 binh luận

CT scan of cardiovascular disease: An update

SUMMARY

Coronary artery disease is the leading cause of death in the United States, in developing countries, coronary artery disease is rising rapidly. It’s been projected that by 2020, chronic diseases will account for almost three-fourths all deaths, 71% deaths due to ischemic heart disease. Early detection of coronary artery lesion helps to reduce mortality and improve quality of life by risk factors control and stabilize atherosclerotic plaques.

The newest commercially available MDCT scanners offer the greatest degree of spatial and temporal resolution owing to multidetector channels, fast gantry rotation times and thinner collimation. These parameters are important to creation of high definition coronary artery MDCT imaging.

In the case of acute chest pain, CT also proved safe, effective, low-cost, reduced the number of emergency visits and hospitalization. In addition to the accurate diagnosis, CT of coronary artery disease also evaluated other heart diseases such as congenital heart disease, pericardium, cardiomyopathy, heart valve

New developments such as FFR-CT, iFR-CT or Myocardial perfusion assessment show that computed tomography for cardiovascular disease diagnosis will be more potential in the future.

Keywords: coronary computed tomographic angiography, cardiac computed tomography, multi-detector computed tomography for cardiovascular disease diagnosis.

U tế bào quanh mạch nguyên phát ở xương chày - Báo cáo một trường hợp hiếm và tổng kết trên y văn

U tế bào quanh mạch nguyên phát ở xương chày - Báo cáo một trường hợp hiếm và tổng kết trên y văn

03/26/2020 22:33:38 | 0 binh luận

Primary haemangiopericytomas of tibia - a rare case report and review in litterature

SUMMARY

Hemangiopericytomas (HPCs) are rare vascular tumors arising from pericytes. Therefore HPCs have a wide distribution in both soft tissue and skeletal system, with the latter being the most unusual occurrence. Currently, there are about 74 cases of osseous HPC have been reported in the available English literature, only five of them located in the tibia. Primary hemangiopericytomas of bone usually occurs in pelvis, vertebrae and long bones of lower extremities. The prognosis of the tumor behaviour is still not feasible and it has the potential to demonstrate a highly malignant course. We introduce a case of primary HPCs of bone located in tibia, which received a treatment by widen resection and bone transportation.

Keywords: u tế bào quanh mạch, u xương/ hemangiopericytoma, bone tumor.

Đặc điểm hình ảnh XQUANG của tổn thương đa chồi xương có tính chất di truyền: Nhân một trường hợp

Đặc điểm hình ảnh XQUANG của tổn thương đa chồi xương có tính chất di truyền: Nhân một trường hợp

03/26/2020 22:26:41 | 0 binh luận

Imagings of hereditary multiple exostosis (hme): A case report

SUMMARY

Osteochondromatosis or Hereditary Multiple Exostoses (HME) is a rare disease which is inherited in an autosomal dominant manner, there are many osteochondromas at the appendicular skeleton. This report presents the patient who had typical clinical and radiologic features of the disease. Female patient, 24 years old, she has a pain both lower limbs, there are slight deformity both upper and lower limbs on the examination. On the X-rays of the limbs present many osteochondromatosis at the meta-physeal regions of long tubular bone, it may be pedunculated or broad-based form, the pedunculated appearance follow the direction away from the epiphysis and towards the diaphysis follow-ing the tendon pill. With characteristic features on the plain radiology: the final diagnosis is hereditary multiple exostosis.

Vai trò của hình ảnh học trong nhiễm trùng quanh hậu môn

Vai trò của hình ảnh học trong nhiễm trùng quanh hậu môn

12/03/2019 14:22:51 | 0 binh luận

Áp xe và rò hậu môn là một trong các bệnh lý nhiễm trùng vùng hậu môn trực tràng khá phổ biến. Đây bản chất là 2 giai đoạn của ổ nhiễm trùng vùng hậu môn mà ở đó rò hậu môn hình thành từ những ổ áp xe cạnh hậu môn.
Vai trò của X quang cắt lớp điện toán trong chẩn đoán và phân giai đoạn ung thư tế bào thận

Vai trò của X quang cắt lớp điện toán trong chẩn đoán và phân giai đoạn ung thư tế bào thận

03/30/2020 15:18:30 | 0 binh luận

Role of computed tomography in diagnosing and staging of the renal cell carcinoma

SUMMARY

Background: Early diagnosis and accurate preoperative staging of the renal cell carcinoma are necessary to select the most appropriate treatment.

Purposes: This study aims to describe the imaging characteristics and define the value of CT in preoperative staging of renal cell carcinoma.

Subjecs and methods: Retro - and prospective cross section descriptive study of 105 patients in Binh Dan hospital from Dec 2012 to Apr 2015, with histologically verified renal cell carcinoma and using CT preoperatively. Imaging characteristics and staging were made by evaluating imaging obtained and compared with the operative and postoperative histopathologic results.

Results: The most common location was upper 1/3 kidney (32.4%). Tumor size 41-70mm (52.4%) had the highest percentages. Tumors had constrast enhancement (100%), unsmooth margins (55.2%), intra-tumoral necrosis (91.0%), calcification (16.2%). Tumor detection in the nephrographic phase were 100%. Tumors had renal sinus fat invasion (34.3%), extension beyond Gerota’s fascia (17,1%); involvements of ipsilateral renal vein (6.7%), inferior vena cava above diaphragm (4,8%) and below diaphragm (5.7%), invasion of ipsilateral adrenal gland (1%), local lymph nodes (13.3%) and distant metastases (5.7%). Tumors had the surgical stages I, II, III, IV and then the mean tumor sizes increased 40.50mm, 63.60mm, 67.58mm, 97.01mm, respectively. The sensitivity, specificity, accuracy, positive predictive value and negative predictive value of CT to evaluate the perinephric fat invasion were 88.52%, 68.18%, 80.0%, 80.0%, 79.41%, respectively. Percentages of CT staging correlating with operative staging was 90%, in which stage I was 100%, stage IV was 91%.

Conclusions: CT is still the principle basis for preoperative staging of renal cell carcinoma.

Keywords: Computed tomography (CT), renal cell carcinoma.

Gía trị của cắt lớp tuyến vú kỉ thuật số ( DBT) trong chẩn đoán ung thư vú

Gía trị của cắt lớp tuyến vú kỉ thuật số ( DBT) trong chẩn đoán ung thư vú

03/30/2020 14:28:25 | 0 binh luận

The role of digital breast tomosynthesis in diagnosis of breast cancer

SUMMARY

The purpose of this study is to describe some imaging findings and evaluate the role of digital breast tomosynthesis (DBT) in diagnosis of breast cancer. The study was conducted on 59 breasts of 59 patients with clinical signs or abnormal imaging findings. The malignant or benign nature of the lesions was established by histologic analysis of biopsied lesions or FNA with follow-up.

Result: The common manifestations of cancer noted at DBT include ill-defined mass, speculated margins, architectural distortion and microcalcifications. DBT improved diagnostic sensitivity for patients with mass and architectural distortion, and allows a reclassification of the degree of BI-RADS. There was slight to fair agreement for lesion type (k= 0 - 0.25) and BI-RADS final assessment (k = 0.285 - 0.396). DBT improved diagnostic performance compared to MMG, with Se = 94.9%, Sp = 75%, PPV = 88.1%, NPV = 88.2%, Vg = 88.1%.

Conclusion: Our study showed fair agreement in lesion detection and characterization between MMG and DBT images. Our findings also demonstrated that DBT is a novel technique that superior in detecting and diagnosing breast cancer compared to MMG, especially in mass and architectural distortion.

Keywords: Digital breast tomosynthesis (DBT), mammography (MMG), breast cancer.

Nghiên cứu các biến đổi giải phẫu của động mạch  thân tạng và mạc treo tràng trên trên chụp cắt lớp  vi tính 64 dãy

Nghiên cứu các biến đổi giải phẫu của động mạch thân tạng và mạc treo tràng trên trên chụp cắt lớp vi tính 64 dãy

05/23/2020 11:24:06 | 0 binh luận

SUMMARY

The purpose of this study was to determine the different variants of celiac and superior mesenteric arteries identified at abdominal 64-slice CT scanner performed in 910 patients.

Results: 282 patients (30.9%) had arterial variants identified. The most common variant identified was a right hepatic artery originating from the superior mesenteric artery, which was seen in 77 (8.5%) patients. The second most common variant was a left hepatic artery originating from the left gastric artery, seen in 47 (5.2%) patients. Variations in the origin of the common hepatic artery were seen in 10 (1.1%) patients. The right hepatic artery originated from the celiac axis in 13 (1.4%) patients and from the aorta in 3 (0.3%) patient. The left hepatic artery originated from the celiac axis in 4 (0.4%) patient. Accessory hepatic arteries were identified in 53 (5.8%) patients.

Lịch học Online tháng 5

VIDEO

H2 Quảng cáo baner 4

Đơn vị hợp tác