background: the aim of this work was to study the feasibility of constructing a fast thorax model suitable for simulating lung motion due to respiration using only one ct dataset. materials and methods: for each of six patients with different thorax sizes, two sets of ct images were obtained in single-breath-hold inhale and exhale stages in the supine position. the ct images were then analyzed ...

Background: In vivo dosimetry is a method for estimation of overall error in the delivered dose to the patients at the end of radiotherapy process. In this research, two methods for target dose calculation were evaluated on midline and central axis of photon beams in in vivo dosimetry of thorax fields. Materials and Methods: Entrance and exit doses for anterior and lateral fields of thorax were...

Background:  This study presents patient specific and organ dose estimation in computed tomography (CT) imaging of thorax directly from patient CT image using Monte Carlo simulation.  Patient's CT image is considered as the patient specific phantom and the best representative of patient physical index in order to calculate specific organ dose. Materials and Methods: EGSnrc /BEAMnr...

A case of blunt traumatic rupture of the left hemidiaphragm following a traffic accident was presented. On admission the patient complained of a dyspnoea, and the physical examination of the thorax revealed the absence of breathing sound on the left side. A chest radiography and CT scan had shown the presence of the stomach in the left hemithorax. Posterolateral thoracotomy was performed. In th...

We report a case of a 72-year-old male with a history of scleroderma who presented to the emergency room with an asymptomatic pneumoperitonum after undergoing a CT thorax for evaluation of intersitial lung disease. Abdominal imaging was performed with oral contrast and did not reveal extravasation of the contrast into the peritoneum suggesting there was no perforated viscus. The patient was man...

INTRODUCTION Congenital diaphragmatic hernia is a major malformation occasionally found in newborns and babies. Congenital diaphragmatic hernia is defined by the presence of an orifice in the diaphragm, more often to the left and posterolateral, that permits the herniation of abdominal contents into the thorax. The aim of this case series is to provide information on the presentation, diagnosis...