Value of mammography, ultrasound in breast cancer screening with women ≥40 years old SUMMARY Objective: To research the value of mammography, ultrasound in breast cancer screening with women ≥ 40ys. Methods: Including of the study was 1319 women (age ≥40) in the range of six months with breast cancer screening at University Medical Center, Hochiminh city, from 1 June 2014 to 31 May 2016. Mammography and ultrasound were performed using BI-RADS (The Breast Imaging and Reporting Data System) of the American College of Radiology. Breast cancer was determined by histopathological results. Results : The proportion of breast cancer was 1.67% (22/1319). Among 22 cancers detected, 19(14.4/1000) with mammography, 18(13.65/1000) with ultrasound. The sensitivity, specificity of mammography respectively were 86.36% (IC 95%: 65.09-97.09), 99% (98.29-99.47) higher than ultrasound: 81.82% (59.71-94.81); 95.45% (94.18-95.52). When combined two tests, the sensitivity and specificity respectively were 100% (IC 97.5%:84.56-100), 95.37% (94.09-96.45); PPV was decreased (26.83%) (17.63-37.75) compared to mammography (59.38%) (40.64-76.3); NPV was increased (100%)(IC 97.5%: 99.7-100) compared to mammography (99.77%) (99.32-99.95)or ultrasound alone (99.68%)(99.18-99.91). Conclusions : The sensitivity and specificity of breast cancer screening with mammography were higher than ultrasound alone. When combined two tests, it was increased the sensitivity, decreased the specificity compared to mammography alone. Keywords: breast cancer screening, mammography, ultrasound.

Primary result: the short - term efficacy of selective nerve root block for lumbar radicular pain under ct guidance SUMMARY Purpose : Evaluating the short-term efficacy and the safety of SNRB method in treating lumbar discal herniation pain. Methods :prospective, 24 patients with lumbar disc herniation treated by SNRBfrom February to June 2016, the contrast media is used to identify the nerve root before ịnjecting compound of Corticosteroid and Lidocain under CT guidance. Measurements of pain (with pain scale Visual Analogue Score - VAS) and mobility (Disability Index OSWESTRY - ODI) were compared at 1 day, 2 week, 1 month and 3 months after the procedure. Results : 27 roots are blocked/24 patients, pain scores were significantly reduced compared with before treatment at every follow-up period. The preprocedural mean VAS score was 5.9. At follow-up, mean VAS scores ranged from 1.9 to 2.4. The pretreatment mean ODI score was 43,6 and it ranged from 9,8 to 19 at follow-up, none grave complication. Conclusion :S.N.R.B for lumbar radicular pain is a simple and safe procedure, but its effect is quite high. It is recommended to perform before surgery. Keywords : SNRB, discal herniation.

Preoperative starging of gastric cancer by multiple detector computed tomography SUMMARY Objective: The aim of this study was to evaluate the accuracy of multiple detector computed tomography (MDCT - BRIVO CT 385-GE Japan) in the preoperative staging of gastric cancer, prospectively comparing CT findings with pathological findings confirmed at biopsy during upper endoscopyand at surgery. A total of 74 consecutive patients with primary cancer recruited between December2015 to July 2016 were submitted to preoperative MDCT staging according to a standard protocol. All diagnostic procedures were performed by two dedicated radiologists who were unaware of the final pathological results. All patients were diagnosed with primary gastric cancer, confirmed at biopsy during upper endoscopy. CT results for T and N staging were in agreement with pathological findings,with overall accuracy of 83,8% (62/74) and 81,1% (60/74%, respectively. Higher specificity for T and N earlier stages (both 100%). Higher accuracy and sensibility for all T and N stages (78,9-94,6% for T and 80,9-96,6% for N). Our findings show a good performance of the diagnostic staging TNM performed with MDCT. Keywords: Gastric Cancer, MDCT, Staging, Oncologic Imaging.

Diagnostic performance of stress perfusion cardiovascular magnetic resonance for detection of Ischemia Heart Disease SUMMARY: Objective: Evaluation of the diagnostic of stress perfusion cardiovascular magnetic resonance for the diagnosis of significant obstructive coronary artery disease in comparison to invasive coronary angiography. Material and Methods: 36 patients with suspected ischemic heart disease/ 25 males (69.4%) with mean age: 65.53 ± 10.48 year underwent 1.5 Tesla CMR including cine, short axis to evaluate EF, EDV, ESV, stress PERF (adenosine 140 μg/min/kg), rest PERF (SSFP, 3 short axis, 1 saturation prepulse per slice) and LGE (3D inversion recovery technique) using Gd-BOPTA. Images were analyzed visually. Stenosis >50% in invasive angiography was considered significant. Results: Mean study time was: 45.44 ± 9.18 minutes, EF: 45.06 ± 15.66%, Hypokinesia: 44.4%, Akinesia: 27.8%. The overall patient-based analysis demonstrated a high sensitivity, specificity and PPV for perfusion was 93.3%; 83.3%; 96.6% and moderate NPV 71.4%. A good relation (p<0.01) between deficit perfusion state correlation with coronary stenosis of LAD, RCA, LCx . Conclusion: Stress perfusion CMR with Adenosine is highly sensitive and specificity for detection of coronary artery disease. Keywords: Cardiac Magnetic Resonace (CMR), diagnose, coronary artery disease, ischemia heart disease (IHD), coronary artery, perfusion, Adenosine.

SUMMARY Positron Emission Tomography/Computed Tomography (PET/CT) with 2-[(18)F]fluoro-2-deoxy-d-glucose (FDG) is a hybrid imaging modality having recently become established in the staging, restaging and therapy response assessment of oncology patients. FDGPET/CT has several applications in colorectal cancer imaging including preoperative evaluation of apparently limited metastatic disease, detection of disease recurrence, clarification of equivocal lesions at initial staging, investigation of unexplained rising tumour markers. With a constantly advancing body of evidence and increasing availability, applications of PET/CT in colorectal cancer (CRC) are likely to emerge in using of novel tracers and ‘one-stop’ imaging techniques such as iodinated contrast-enhanced PET/CT. With the use of illustrative clinical examples, this article reviews the utility of FDGPET/CT in the restaging of CRC, discussing its role and limitations in the multimodality imaging of these patients.

Application of selective parathyroid venous sampling technic in patients with primary hyperparathyroidism SUMMARY Primary hyperparathyroidism (HPT) is a common endocrine disease causing hyper level of serum Calci, that effect on the systemic organs, even mortality. Most patients have one adenoma but some patients have multiglandular disease or etopic gland disease. Patients undergoing surgery are often cured with the success rate of 95% and the complication rate of lower than 3%. The non-invasive techniques to determine the location of gland disease includes ultrasound, CT scanner, MRI, scintigraphy… The sensitivity of these techniques is about 90%. In patients with HPT have negative imaging studies and in persistent HPT after operation, it impossible to determine the gland disease before operation. We present an additional diagnostic tool for this situation, selective venous sampling technique. Veinous sampling technic of the neck through the catheter for PTH testing on patient’s hyperparathyroidism is valuable to locate the position of parathyroid tumors. Keywords: selective venous sampling, hyperparathyroidism.

Imaging characteristis of coronary artery after stent implantation in 64 slice computed tomography SUMMARY Objective: Describe imaging characteristis of coronary artery after stent implantation in 64 slice computed tomography. Method: This is a prospective, cross section study applied on 85 patients who satisfied study selective requirement, from 06/2012 to 07/2013 in Hữu Nghị Hospital. Result: The most common age group is above 60 years old (90.6%); 48.2% patients have one coronary artery impairment, only 11.8% patients have three coronary arteries impairment; median diameter of stent is 3.02±0.5 mm, median length is 28.9±10.2mm; the percentage of LAD is 53.8%, RCA is 33.3%, LMA is 3.8%. There are 16 case have restenosis, in-stent lesions in 68.8% (11/16), pre-stent extending lesion in 31.2% (5/16). Conclusion: 64 slide computed tomography is non-invasive diagnosis method which have advantage in evaluate coronary artery after stent impantation: location of stent, lesions characteristic, this method also have high sensitivity and speciality in diagnoses restenosis compare to angiography. Keywords: 64 slide computed tomography, coronary artery.

Applications of pelvic embolization in bleeding after hysterectomy, cervical cancer in hue central hospital: a six cases series SUMMARY Background: When conservative management cannot control a postpartum hemorrhage, cervical cancer hemorrhage, a surgical or interventional approach is usually the next line of treatment. If the above techniques fail to control the bleeding, then a hysterectomy is indicated. Bleeding after hysterectomy will likely require the use of interventional radiology therapy [2]. Patient and Method: Six patients were performed the transcatheter arterial embolization (TAE) in Hue central hospital from 10 /2011 to 10 /2013, 6 cases had extravasation. Conclusion: Applications of pelvic embolization is an effective and safe therapeutic method, it can be widely apply. Key words: Pelvic embolization.