نتایج جستجو برای: conventional radiographs
تعداد نتایج: 274047 فیلتر نتایج به سال:
BACKGROUND The interpretation of thoracic spine X-rays is difficult because these images cannot clearly visualize the thoracic spine because of the overlap with soft tissues, such as the heart and pulmonary blood vessels. Thus, to improve the clarity of thoracic spine radiographs using existing radiograph equipment, we have investigated a one-shot energy subtraction method to visualize thoracic...
introduction: the aim of this study was to compare a clearing technique with conventional radiography in studying certain features of the root canal system in single root premolars. a secondary aim was to assess inter examiner agreement for these features using radiographs. materials and methods: fifty-eight recently extracted single rooted premolars were included in this study. two standard pe...
introduction: clinical application of radiography in endodontic practice is affected by reproducibility in the orientation of the x-ray source, image receptor and object. the inability of dentists to locate intra oral films or sensors in appropriate positions in different cases can cause complications in the performance of endodontic therapy. commercially available film holder (endoray) and con...
BACKGROUND AND AIMS Digital radiographs have some advantages over conventional ones. Application of digital recep-tors is not routine yet. Therefore, there is a need for digitizing conventional radiographs. The aim of the present study was to compare the diagnostic accuracy of digitized conventional radiographs by scanner and camera in detection of proximal car-ies. MATERIALS AND METHODS Thre...
BACKGROUND Scaphoid fractures are the most common type of carpal fractures. OBJECTIVES The aim of the study was to compare the diagnostic value of panoramic and conventional radiographs of the wrist in scaphoid fractures. PATIENTS AND METHODS The panoramic and conventional radiographs of 122 patients with acute and chronic wrist trauma were studied. The radiographs were analyzed and examine...
The purpose of this study was to verify the angular measurement values conventional Lateral Cephalometric Radiographs (LCRs) and Cone-Beam Computed Tomography (CBCT) Mid- Sagittal Plane (MSP) projections when using same cephalometric analysis method.
It is a well known fact that conventional Dental radiographs were considered as an important part of dental care in the earlier times. Most of these radiographs are still practiced widely by a lot of dental practitioners. In the past, the field of "Dentistry" was precise and was considered related to dentition only. Along with clinical oral examination, the radiographs used to provide with a mo...
Destruction of the articular cartilage is the first change seen on gross examination of the knee in osteoarthritis. Weight-bearing radiographs are conventionally taken with the knee in full extension. Biomechanical studies have shown, however, that the major contact stresses in the femorotibial articulation occur when the knee is flexed about 28 degrees. Arthroscopy has confirmed that cartilage...
BACKGROUND The clinical value of computed tomographic (CT) scanning of the chest in the initial assessment of sarcoidosis was investigated. METHODS One hundred consecutive patients referred to the sarcoidosis outpatient services of the Mount Sinai Medical Center, New York from 1990 to 1992 with a presumptive diagnosis of sarcoidosis were studied. The diagnosis was subsequently confirmed in al...
With the development of computed tomography, ultrasonography and specialized scintigraphic techniques, conventional radiographic imaging of the abdomen has generally been relegated to a minor position in each of the three clinical entities under discussion in this series. On the other hand, one can make a good case for routinely obtaining radiographs of the abdomen in most patients with an acut...
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