نتایج جستجو برای: diagnostic x ray examination
تعداد نتایج: 1126419 فیلتر نتایج به سال:
introduction given the fact that children are more sensitive to radiation, compared to adults, special attention needs to be paid to radiation protection in pediatric radiology. diagnostic reference level (drl) has been defined to be employed as a practical tool for examining the overall performance of a radiological center in terms of patient dose among a series of similar equipments in an are...
Background: Present study is a prospective study to evaluate clinical and etiological features associated with the sensation of lump in the throat, in patients who attended OPD of ENT dept: of Govt: Medical College, Thrissur, Kerala, during August 2012 to August 2013. Various etiologies were found after doing investigations like Diagnostic Nasal Endoscopy, Flexible Video laryngoscopy, X ray PNS...
Polycapillary x-ray optics provide an innovative new way to control x-ray beams. Placing these optics after the object to be imaged provides very efficient rejection of Compton scatter, while allowing image magnification without loss of resolution, image demagnification, or image shaping to match with digital detectors. Measured scatter rejection optics had primary transmissions greater than 50...
Aim: How to diagnose and treat haemangioma. Methods: History, Clinical examination, X-ray PNS and post operative histological examination showed haemangioma. All the patients were presented with history of unilateral epistaxis and unilateral nasal obstruction. X-ray studies, post operative follow up and histological examination was performed in all cases. Results: We operated upon eleven cases,...
Conventional diagnostic X-ray units are used for radiographic imaging in many countries. For obtaining entrance surface doses, a numerical dose determination method has been applied in Japan. Although this technique is effective, it has to account for errors, particularly fluctuations, due to the beam quality and output of X-ray tubes. As a part of our quality control procedures, we recorded th...
background: the use of the ionizing radiation in the medical practice has evolved since its beginnings. their benefit for the patient is considerable in term of comfort, diagnostic and therapeutic effectiveness. it is estimated that 30% to 50% of critical decisions in medical approaches is based on x-ray examination. using the x-ray as a diagnostic means by clinicians requires appropriate and a...
Eighty-six osteolytic lesions of the rib cage were examined by means of conventional radiography and ultrasonography. The ultrasonographic criteria of osteolysis are described. Only 1 rib metastasis was missed by ultrasonography while 13 lesions were not detected by x-ray film. Of 63 ultrasonographically guided biopsies, 62 resulted in the final diagnosis; complications were not observed. The r...
Leiomyomata (uterine fibroids) are the most common tumours of the female pelvis. Presentation of most cases of fibroids are usually straightforward making diagnosis and management easy. However, when they undergo various kinds of pathologic changes, they pose both diagnostic and management difficulties. This article presents a rare case of a large degenerated parasitic leiomyoma in the peritone...
Background: Cardiac catheterization and angiography are diagnostic and therapeutic imaging modalities that produce the highest X-ray radiation, which might impose lifelong risks to patients. This study aimed to evaluate radiation burden among children and adolescents with congenital heart diseases, who underwent cardiac catheterization and angiography. Then the results were compared with other ...
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