A case report of parasigmoidabcess due to foreign body SUMMARY We present the case of parasigmoidabscess due to foreign body that was diagnosed and treated in NHP, Hanoi. The childaged 4 years old, hospitalized with abdominal paint, fever and diarrhea. The child was examined by Abdominal Ultrasound, CT scanner. Operation revealed the diagnosis of parasigmoidabscess due to foreign body.

Role of ultrasonography, computed tomography estimating abdominal invasion and metastasis in renal cell carcinoma SUMMARY Object: Describe the ultrasonography and computed tomography features of renal cell carcinoma (RCC) and investigate the role of ultrasonography, computed tomography in estimating RCC invasion and metastasis in abdomen Research design : Including 32 RCC diagnosed patients who underwent surgical treatment at Hue Central Hospital and Hue University of Medicine and Pharmacy from April 2013 to August 2014. Results : The ultrasonographic features: The average size of tumor was 6.2 ± 2.4 cm; One case wasn’t found by ultrasound. The computed tomographic features: the size of tumors within 7 to 10cm occupied the highest rate at 43.8 percent (43.8%). Postoperatively, according to the pathological results, the tumor in T1 stage occupied the highest rate at 37.5 percent (37.5%). Compared the result of ultrasonography and computed tomography in finding calcification, vein thrombosis, located invasion and abdominal metastasis had p < 0.05 meant significant statistic. Conclusion : Ultrasonograph is a useful method to detect early tumor. Besides, computed tomography, especially spiral computed tomography with the multi planar reconstruction ability, indicated many advantages in estimation located invasion and vicinage organs metastasis in abdomen. That is also the most important criterion to classify the stage of kidney cancer in order to determine the best treatment plan for patients. Key word: Renal cell carcinoma, metastasis

Value of 2 detectors computed tomography in diagnosis o f hepatoblastoma SUMMARY Purpose: to evaluate the diagnostic value of 2 detector CT in pediatrichepatoblastoma (HB). Materials and methods: 69 patients 0-15 year old with clinical diagnosis of liver tumor, had 2 detectors CT-Scaner result of hepatoblastoma or not, all of them had pathology results, from 1/2010 to 5/2014 in National Hospital of Pediatric. Result: these is no single characteristic of HB on CT-Scaner wich had high value in diagnosis of HB. The characteristic of calcification within the tumor had highest specificity of 90% but with low sensitivity of 34.7%. The value of diagnosis that combine the characteristic of solid tumor on computedtomography with the age under 3 year old has specificity of 55%, sensitivity of 85.7%, when combining the characteristic of solid tumor on computedtomography, age under 3 year old and AFP higher than normal limit has specificity of 80%, sensitivity of 85.7%. CT- Scaner had high value in evaluating the tumor location with very high Kappa score of 0.856 and high in staging PRETEXT of 0.65. Conclusion : the diagnosis of HB should combine the characteristic of CT- Scaner with the age and value of alfa fetoprotein, wich had high sensitivity and high specificity. CT-Scaner had high value in evaluating tumor location, staging PRETEXT, and infiltration of tumors. Keywords: hepatoblastoma, liver tumors in children, liver mass in children, hepatoblastoma imaging.

Eficacy evaluation of percutaneous vertebroplasty combined with preprocedure orthopaedic positioning SUMMARY Purpose: To evaluate the effectiveness of Percutaneous ertebroplasty combined preprocedure orthopaedic positioning in treating fresh vertebral compression fractures. Methods : From January 2012 to May 2014, the data of 31 patients (23 females, 8 males; mean age, 72 years) with new vertebral compression fractures were prospectively and retrospectively analyzed. At least 6h before vertebroplasty produce, the patients were positioned to straighten the vertebral column. The radiographies of spinal column is face and lateral view before and post produce were analyzed to evaluate the vertebral body height, as well as scoliosis. Effectiveness of pain-relief was evaluated based on Visual Analog Scale (VAS). Results: The body height vertebral of compression fractures in these patients was improved by a mean of 56.2%. We achieved a mean improvement of the wedge angle 5.9o and the cobb angle 4,90 (p < .05). The VAS score is significantly improved (mean 7,8 before and 1,6 after procedure, p < 0,05). Conclusions : The combination between pre-procedure positioning and vertebroplasty brought good results in pain relief and height of vertebral body with low price. Keywords : Percutaneous vertebroplasty, Kyphoplasty, Vertebroplasty versus Kyphoplasty, Vertebral body height in vertebropasty.

The role of percutaneous CT-guided vertebral biopsy using bone marrow biopsy needle combine with semi-automatic soft tissue biopsy needle SUMMARY Introduction : The bone biopsy instruments were improved regularly to increase successful rate and reduce complication but accompany with increasing of cost price. Our research purpose to assess the role of percutaneous CT-guided vertebral biopsy using bone marrow biopsy needle combine with semi-automatic soft tissue biopsy needle. Method: This is a retrospective study involving 143 patients who underwent percutaneous CT-guided vertebral biopsy in Radiology department, Bach Mai hospital. Biopsy needle included: bone marrow biopsy needle 13 and 11G, Surelock, TSK, Japan combined with soft tissue biopsy needle Stericut 16 and 14 G, TSK, Japan. Result: Adequacy 95.1%, pathologic specific diagnosis rate 86%, accuracy 85.3% and complication rate 0.7%. Conclusion: The adequacy of technique is not lower than most recent researches as so as open vertebral biopsy, the complication rate is not higher than most recent researches but significant lower than vertebral open biopsy. Keywords: Percutaneous, vertebra, biopsy, CT scanner, adequacy, complication.

The diagnostic accuracy of 64-slice computed tomography and Doppler sonography in patients with cerebra l infarction caused by atherosclerotic plaques of carotid system SUMMARY To compare the diagnostic accuracy of 64-slice computed tomography and Doppler sonography in patients with cerebral infarction caused by atherosclerotic plaques of carotid system. Objectives : (1) Describing that cause image findings of 64-slice computed tomography and Doppler sonography in patients with cerebral infarction caused by atherosclerotic plaques of carotid system. (2) Comparison image findings of 64-slice computed tomography and Doppler sonography in patients with cerebral infarction caused by atherosclerotic plaques of carotid system. Method: we studied 34 patientswith the diagnosis of ischemic stroke admitted to Huu Nghi Hospital from 11/2013 to 9/2014. All patients’s carotid arterial system were evaluated by US and then by 64-slice CT. Results : Average age: 76.5 ± 8.5. Hypertension: 80%. Diabetes: 37.1%. High blood cholesterol: 20%, previous stroke history: 45.7%. More than 2 Risk Factors: 60%. Carotid artery stenosis: Normal: 35.3% by 64 slice ct and 32.3% by Ultrasound. Up to 69%: 47.2% by 64 slice ct and 44.3% by Ultrasound. 70-100%: 20% by 64 slice ct and 18.6% by Ultrasound. This study showed almost perfect agreement between 64-slice computed tomography and Doppler sonography in detection of stenosis with kappa value of 0,804. Conclusions: Good correlations were observed between 64 slice computed tomography and Doppler sonography in evaluating carotid artery system in cerebral infarction caused by atherosclerotic plaques of carotid system. Keywords: 64 slice CT, carotid artery, doppler sonography, ischemic stroke.

Application of ultrasound in diagnosis, monitoring progess and evaluating treatment outcomes cryptochidism in children under 2 years of age SUMMARY Cryptorchidism is the most common urological genital malformation in children.Ultrasound is a good radiology method for diagnosis and treatment evaluation. We have performed a research with name “Application of ultrasound in diagnosis, monitoring progess and evaluating treatment outcomes cryptochidism in children under 2 years of age”. The study included 69 patients, was carried out from October 2012 to August 2013 . The sensitivity ultrasound in diagnosis is between 60- 100% denpending on each position. Ultrasound diagnoses testicle dimension properly in comparison with surgery. Success rate after surgery, three months of endocrinology treatment, six months of endocrinology treatment are 94.6%, 25% and 40% respectively. Key words: cryptochidism, ultrasound.

Imaging characteristics and the role of ultrasound on diagnosis and tracking after surgical treatment carpal tunnel syndrome SUMMARY Carpal tunnel syndrome quite commonly, pinched median nerves can cause muscle atrophy, reduced function and motor of hand. Surgical treatment of carpal tunnel syndrome cut carpal ligament is the most thorough treatment. Ultrasound is one of the means to applied in the diagnosis and tracking after of the disease. Objectives : 1) Describing the characteristic ultrasound images of carpal tunnel syndrome; 2) Analyzing the ultrasound images before and after surgery treatment of carpal tunnel syndrome. Subjects and Method : A prospective study of 33 patients with 37 hands, who underwent open surgical for carpal tunnel syndrome from November 2013 to September 2014 at the hospital in Hanoi medical University. The patients were clinical examination, electromechanics and ultrasonography carpal tunnel before and after the operation. Results: The area of median nerve segment near pronator quadratus muscle in pre-treatment period 6.4±1.3mm2, near proximal carpal tunnel 17.3±7.2mm2, in carpal tunnel 8.3±2.7mm2, outlet carpal tunnel 9.0±2.8mm2. The common signs of neuronal injury median as: swelling of the nerve median positive 94.6%, Notch sign positive 73%, Delta sign S>2mm2 positive 91.9%, the CSA W/F>1.4 positive 89.2%... 02 wrists abnormalities neurosurgeon 6%. Postoperatively the patients had clinical manifestations to immediately reduce, but the nerve median area decreased only after 3 months (p<0.05). Conclusion: Ultrasonography has ability identify nerve median segments injured through the carpal tunnel and other injuries the wrist coordinated, simultaneously ultrasound tracking effective after surgical treatment tunnel syndrome wrists. Keywords : Carpal tunnel syndrome.