• Chủ nhật, 26/06/2022
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Đánh giá kết quả đặt stent điều trị hẹp mạch nội sọ tại Trung tâm Điện quang Bệnh viện Bạch Mai

Đánh giá kết quả đặt stent điều trị hẹp mạch nội sọ tại Trung tâm Điện quang Bệnh viện Bạch Mai

06/05/2021 16:47:06 | 0 binh luận

SUMMARY Background & Aims : Evaluation the results of the stenting on treatment of Intracranial Atherosclerosis. Methods: A prospective, non-controlled intervention study in intracranial artery stenosis patients with or without symptoms. The patients were indicated for treatment with stent placement from June 2017 to June 2020 at Radiology Center of Bach Mai Hospital. Results : The study was performed on 18 patients, including 14 patients have acute celebral ischemic stroke with intracranial stenosis and 4 patients have simple intracranial stenosis. : The study was performed including 10 men (55.6%) and 8 women (44.4%). The mean age of patients was 66.28 ± 10.87 years. The rate of successful interventions for intracranial artery stenosis was 94.4%. There are 2 patients (11.11%) had acute or immediately post intervention. Symptoms and complications, especially related to intracranial artery stenosis, were observed in 4 patients (22.22%). After an average of 3 months of follow-up, 1 patient died from perforation causing cerebral hemorrhage (5.56%) and 03 patients from stent-obstructive cerebral infarction after intervention (16.67%). Results of clinical recovery after stenting based on mRs scores with mortality, good recovery and slow recovery were 22.22%, 44.45% and 33.33%, respectively. Conclusion: The results of stent treatment for intracranial artery stenosis in our research have a high success rate. The safety of the intervention and post treatment clinical recovery rate are high. Key words : ICAD, PTAS
Đánh giá hiệu quả giảm đau trong tiêm phong bế rễ thần kinh thắt lưng dưới hướng dẫn của DSA

Đánh giá hiệu quả giảm đau trong tiêm phong bế rễ thần kinh thắt lưng dưới hướng dẫn của DSA

06/05/2021 15:13:57 | 0 binh luận

SUMMARY Objection. Evaluation of clinical efficacy of lumbar selective nerve root block under DSA guidance Subject and methods: Prospective study on 160 patients at Duc Giang hospital from May 2019 to May 2020 with signs of lumbar radiculopathy. Subjects were undergone lumbar selective nerve root block under DSA guidance and were assessed with visual analog scale (VAS) and Owestry disability questionaire (ODI) prior to procedure and at 3 days, 1 week, 2 weeks, 1 month and 2 months follow-up. Results: In 160 patients who undergone lumbar selective nerve root block under DSA guidance, average of age was 63.1±12.8. Female account for 60.6% of participants. VAS and ODI score were significant improve (p<0.05). Conclusion: Lumbar selective nerve root block under DSA guidance was an effective method in the treatment of sciatica. Key words: Lumbar selective nerve root block, DSA, lumbar radiculopathy.
Vai trò cộng hưởng từ ngấm thuốc muộn trong dự báo khả năng phục hồi chức năng tim ở bệnh nhân nhồi máu cơ tim cấp được can thiệp tái thông động mạch vành thì đầu

Vai trò cộng hưởng từ ngấm thuốc muộn trong dự báo khả năng phục hồi chức năng tim ở bệnh nhân nhồi máu cơ tim cấp được can thiệp tái thông động mạch vành thì đầu

01/06/2020 16:20:33 | 0 binh luận

Role of delayed contrast-enhanced magnetic resonance Imaging to predict cardiacfunctional improvement after primary percutaneous coronary intervention for patients with acute myocardial infarction SUMMARY Objective: To access the transmural extent of hyperenhancement and infarct size at Delayed Contrast-Enhanced Magnetic Resonance Imaging (DCE-MRI) on relating toleft ventricular (LV) functional improvement in reperfused myocardial infarction (MI) and to compare theLV morphology and function on MRI afterprimary percutanous coronary revascularization. Materialand Methods : Cine sequenceand Delayed Contrast- Enhanced MRIwere underwent in period of 9 days after percutanous coronary revascularization on29 patients suffering fromAcute MI at Bach Mai Hospital. Long term follow-up cardiac MRI was done to compare the change in LV morphology and function, infarct size. Myocardial wall thickening and left ventricular volumes were quantified on cine-images, and the transmural extent of infarction (TEI), infarct size was doned on delayed-enhancement images. Remodeling was defined as an increase in LV end-diastolic volume index of 20% or higher at follow up. Results: A decrease in myocardial mass (104,9 ± 23,4 to 96,1 ± 25,6 gram; p<0,05), mean SWT score (16,5 ± 4,9 to 14,6 ± 6,1; p<0,001) and increase the mean ejection fraction (45,7 ± 6,9 to 48,8 ± 9,2%; mean 3,2%; p<0,05), whereas mean end-diastolic volume(107,1 ± 23,8to131,7 ± 37,8 ml; p<0,0001) and mean end-systolic volume(58,5 ± 16,3 to 69,3 ± 29,3 ml, p<0,05) did not decrease. Segmental wall thickening did not change (42,6 ± 23,6to 43,3 ± 24,1%; p>0,5). The infarct size at DCE-MRI was related to LVEDVI (r=0,643, p<0,0001). Infarct size of 29% or more of LV area predicted remodeling with high sensitivity (100%) and specificity (89%). The extent of segments that was dysfunctional but viable was related to improvement in ejection fraction(r=0,56; p=0,002). Segmental wall thickening improved significantly in segments with<25% TEI(35 ± 7 to48 ± 7%, p<0,0001), tended to improve in segments with 25% to 75% TEI (32± 10to38 ± 11%, p<0,001), whereas segments with>75% TEI did not improve (22 ± 15to20 ± 14%, p<0,05). Conclusion :In patients with recent reperfused MI, functional improvement predicted by delayed contrast-enhanced Magnetic Resonance Imaging. Key word s: Cardiac Magnetic Resonace Imaging, delayed enhancement MRI, late gadolinium, Acute myocardial infarction, transmural extent of infarction (TEI), infarct size.
Gía trị cộng hưởng từ phổ trong chẩn đoán ung thư tuyến tiền liệt

Gía trị cộng hưởng từ phổ trong chẩn đoán ung thư tuyến tiền liệt

25/03/2020 22:33:20 | 0 binh luận

T he value of magnetic resonance spectroscopy in diagnosis of prostate cancer SUMMARY Purpose: The aim of study was to determine the value of MRS in diagnosis of prostate carcinoma especially for differentiating begnin from malignant lesion of the prostate. Materials and methods : During a period of 4/2014 to 6/2016, 25 consecutive patients with elevated PSA level or clinical suspiciousness were evaluated with MRS of the prostate. The results were confirmed by TRUS-guided biopsy. We compare two groups (prostate carcinoma/PCa and prostate non-caricnoma/PNCa) by variant: mean of the choline plus creatine -to- citrate. Analyzing ROC curve to find the value of MRS in differentiating begnin from malignant tissue of the prostate. Results : Patients range in age from 40 to 89 years (mean 71 ± 12 year). 08 patients were confirmed to have PNCa (32%), whereas 17 patients had PCa (68%). The mean of (Cho+ Cr)/Ci values for PNCa and PCa were 0.50± 0.31 and 2.64± 1.22 respectively. The mean of (Cho+Cr)/ Ci value of PCa was significantly higher than PNCa (p<0.05). On ROC curve, using discrimination threshold of (Cho+Cr)/ Ci is 0.84, the MRS provided a sensitivity of 94.1%, specificity of 87.5% for differentiating NPCa from PCa. Conclusion : Magnetic Resonance Spectroscopy of the prostate can be use to differentiate begnin from malignant tissue with high accuracy. Key words: Prostatic carcinoma, non-carcinoma, Magnetic resonance spectroscopy, TRUS.
Chất tương phản MRI - PRIMOVIST: Vai trò trong chẩn đoán thương tổn gan

Chất tương phản MRI - PRIMOVIST: Vai trò trong chẩn đoán thương tổn gan

22/03/2020 19:18:01 | 0 binh luận

The role of hepatobiliary specific MR cantrast agent in the diagnostic focal liver lesion SUMMARY Purpose: Assessing the role of hepatobiliary - specific MR contrast Agent in the detection and differentiation of benign and malignant focal liver lesions. Maximizing accuracy of imaging in the context of focal liver lesions is paramount in avoiding unnecessary biopsies, which may result in post-procedural complications. Methods and Materials: Retrospectively evaluated the 200 patients cases, executed hepatic MRI at Medic Medical center wich hepatobiliary - specific MR contrast Agent. From on January 2013 to on January 2016, age range 28 - 72years. The lesion detected in liver: 65 cases HCC, 5 Metastasis, 2 cholangiocarcinoma, 2 Adenoma, 26 FNH, 24 Hemangiomas, 14 Regenerative nodules, 20 cysts, 5 Abscess, 37cases had normal liver. All the patients executed T2WI fatsat, Diffusion weighted imaging - MRI with three b values (0, 500, 800 sec/mm2) and Dynamic with Primovist contrast media on the Siemens Avanto 1,5T MRI. Results : In 65cases MRI HCC: 8 cases <1cm; 32 cases 1-2cm; 25 cases >25cm. 26 cases biopsic result: 24 cases HCC (92%), 2 cases cholangiocarcinoma, 39 cases TOCE or RFA no biopsy. 5 cases metastas detected primary tumor. 2 cases cholangiocarcinoma are right with biopsic result. 2 cases adenoma: 1case biopsic resulted in adenoma, 1 case follow up over 1year. 25 cases hemangiomas with contrast media from peripheral enhancement progressing to centre of lesion; 12 cases regenerative nodules is follow up over 1 year no change in nodule size; 20 cysts are high-signal intensity like fluid - signal on the T2WI, T1WI, Diffusion and no change of intensity is found after contrast injection; in 5 cases abscess: 3 cases recovered from an illness, 2 cases HCC after biopsy. Conclusion : Magnetic resonance imaging executed with hepatobiliary - specific MR contrast Agent, contributed to detect the small lesion and differential diagnosis between benign and malignant tumor of the liver.
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