Objective: This study aims to characteristics of CT imaging in the diagnosis of nasopharyngeal carcinoma. Materials and method: 62 patients were hospitalized in Hue Central Hospital from May 2009 to May 2010. These patients were passed CT scanner and confirmed the nasopharyngeal carcinoma on pathology result. Cross-sectional study. Results: Site of tumor on lateral pharyngeal recess is 79.03%; all tumor enhanced by contrast medium and heterogenuos (90,32%); hypervascular (79,03%); intratumoral necrosis (14,52 %); abnormal Rosenmuller fossa (70,97%), Eustachian (64,51%); extending into the pterygomaxillary fossa (56,45%), the nasal cavity (33,87%); skull base erosion (14,52%), invades maxillary sinuses (12,90%), pterygomaxillary process (11,29%). Conclusion: Through this study, we found that CT imagings have many advantages in detecting nasopharyngeal tumors, and tumor position. CT technich is also a good assessment for invasive structures of anatomy around the nasopharynx, especially with the high sensitivity in detecting invasive bone and sinuses.

Objectives: To evaluate the development of foetus (BPD, AC, AAD, FL) and placenta (placental thickness - PT) and the correlation between placental thickness and fetal estimated weight. Materials and Method: Ultrasonographic study 1224 singleton pregnancies with normal developing foetus by cross-sessional describtive method from 01/05/2009 to 20/08/2010. Results: The first pregnancies consist of 59.07%, the second – 29.66 %, the third -11.28%. The fetal and placental ultrasonographic parameters continuously increase from 16 weeks to 38 weeks of age and get satistic meaning with p<0.01. There is closed agreeable correlation between BPD, AAD, AC, FL, PT and fetal ages (w) with r = 0.9829, 0.9895, 0.9882, 0.9827, 0.9689 p<0.0001 correlatively. Conclusion: Ultrasonographic fetal parameters strongly correlate with fetal ages. Placental thickness agreable correlation with fetal ages and FEW.

Objective: This study was conducted to describe the patterns of radiographic and MRI changes in subjects with degenerative disc of the lumbar spine. Materials and Method: a cross-sectional study was done in a sample of 212 individuals who had been diagnosed degenerative disc on MRI sagittal T2 FSE. The degree of degeneration was classified into 5 grades according to Pfirrmann’s classification. All individuals underwent clinical examination, lumbar conventional radiograph and lumbar MRI using 0.23T Open MRI system. Peridiscal lesions such as discal herniation, thecal sac compression, canal stenosis, vertebral osteochondrosis, Modic change and Schmorl’s node were also included in this study. Results: The result showed the proportion of subjects with lumbar disc degeneration by age. The rate was highest in the age group ³ 50 (45.4%) and lowest in the age group <30 (12.7%). There was no significant difference between male and female (χ2 = 2,42; p=0,12). The most common finding of lumbar radiograph was osteophytes (77.4%; p<0.001). There was a correlation between age, osteophytes, disc space narrowing with the degree of degeneration. Cut-off value for age was estimated > 47 (Se=73.4%, Sp=76.1%) with area under ROC curve was 0.806. The most usually affected level was found to be L4-L5 (31.8%). Most of degenerated disc were classifies as grade III (59.5%). Subjects with 1 or 2 degenerative levels made the definitely higher rate compared to 4 or 5 levels. Common peridiscal lesions were disc herniation, canal stenosis, thecal sac compression, vertebral osteochodrosis, Modic change and Schmorl’s node (respectively). Conclusion: The prevalent rate and degree of disc degeneration increased by age meaning that age is risk factor for disc degeneration. Lumbar radiograph and MRI are useful in the evaluation of degenerative disc disease. Key words: lumbar intervertebral disc degeneration, magnetic resonance imaging.

Purpose: The goal of study was to investigate and compare clinical characteristics, surgical characteristics and CT scan characteristics of chronic subdural hematoma in patients undiagnosed clinically. Material and method: a cross-sectional study was conducted in a sample of 64 patients having non apparent clinical symptoms, with chronic subdural hematoma images, being treated surgically from 5/2010 to 7/2011in Hue central hospital. Result: Mean age is 60.45. Proportion male to female is 11.8/1. Traumatic history accounts for 65.6%. Hematoma in frontal- temporal- parietal regions accounts for 50%. Minimum midline displacement is 1mm; maximum midline displacement is 26mm. Minimum hematoma width is 1 mm; maximum hematoma width is 34 mm. Hypodensity of hematoma accounts for 67.2%. Conclusion: Headache and traumatic history are two major clinical characteristics of chronic sudural hematoma. Characteristics of chronic sudural hematoma is hypodensity, homogeneous. There is a relationship between CT scan characteristics, clinical characteristics and surgical characteristics in CSH.

Purposes: Describe the morphological and diastolic function of left ventricular changes in the patients with dilated cardiomyopathy (DCM) on US, X-ray findings, and Evaluate the correlation between morphology and diastolic function of left ventricular. Materials and method: Cross sectional study from Dec 2009 to Aug 2010, on 39 patients with dilated cardiomyopathy were evaluated at the University Hospital of Hue College of Medical and Pharmaceutical. Results: 1. X-ray and US findings characteristics of DCM is significantly increased in diameter of L, H and mG; LVM, LVMI, LVDd and LAD. 2. The pression of pulmonary artery has been significantly increased with redistribution pulmonary arteries in 61.5% cases and 23.1% have reversed pulmonary artery distribution. 3. DCM have diastolic dysfunction in 100% patients, including severe disorders to 61.5%; the restrictive dysfunction has ratio E/A>2 and E/Em average was 23.89± 17.23. 4.The correlation between the morphology and function in DCM: the diameter of H and L on the X-ray, LAD and ratio LA/AO on US correlated with the level of diastolic dysfunction (p< 0.05). All three radiographic parameters on the radio standard (H, L, the index Cardio/Thoracic) and LVDd on US have negative correlated with EF and FS with p <0.05. Key words: dilated cardiomyopathy, diastolic dysfunction, cardiac tissue Doppler, reversed pulmonary artery distribution