primary pleuropulmonary synovial sarcomas are rare soft tissue malignancies; combined metastatic involvement of the heart is extremely rare. in this case report, a 17-year-old female presented with a history of chest pain. chest radiographs revealed a round mass in the left upper hemithorax, and computed tomography (ct) showed a well-defined heterogeneous enhancing mass abutting the pleura. a c...

thrombophilia increases the incidence of pulmonary thrombosis significantly. various hereditary and acquired factors are known for thromboembolism. the hereditary factors are two common genetic autosomal mutations including factor v leidan mutation and prothrombin gene mutation. a descriptive- analytical design was conducted on 60 patients with thromboembolism who met the inclusion criteria. tw...

objectives: this study aimed to assess the effect of voxel size and object location in the field of view (fov) on diagnostic accuracy of cone beam computed tomography (cbct) for detection of simulated bone defects. materials and methods: in this in vitro study, bone defects were drilled in four sections of a dry human mandible. bone blocks were fixed on a platform parallel to the horizontal pla...

errors and variations in interpretation can happen in clinical imaging. few studies have examined the biased effect of clinical information on reporting of brain ct scans. in a blinded double crossover design, we studied whether three radiologists were biased by clinical information when making ct scan diagnosis of the brain. three consultant radiologists in three rounds with at least a one-mon...

conceptually traumatic brain injury (tbi) can be classified from a mechanistic perspective as: 1) closed, 2) penetrating, 3) blast, and 4) crush injuries. thus, tbi is a heterogeneous disease and each type of brain injury has different characteristic features often necessitating different approaches to management. the first edition of the guidelines for management and prognosis of penetrating b...

background: x-ray computed tomography (ct) examinations deliver a significant amount of radiation doses to patients comparing to conventional radiography examinations. the objective of the current study was to analyze and investigate the average patient received dose from axial and spiral ct exams in a medical imaging center. material and methods: in this study, the patient imaging technique, w...