We report findings for a patient that underwent endobronchial ultrasound (EBUS) guided transbronchial needle aspiration (TBNA) for diagnostic purposes after an abnormal chest CT. The patient initially presented with cough and shortness of breath. Chest CT revealed a 6 cm soft tissue mass with mildly enlarged right hilar lymph nodes (LNs) and a small right sided pleural effusion. Based on these ...

Background Low muscle radiodensity on computed tomography (CT) scan, indicative of myosteatosis, is commonly observed in cancer patients and can be associated with poor prognosis. Radiodensity typically measured at the level third lumbar vertebra (L3). It unknown whether features L3 reflect a systemic state affecting peripheral groups, images used different levels as surrogate if are unavailabl...

Segmentation of images is a common task within medical image analysis and necessary component segmentation. The segmentation the liver tumors an important but challenging stage in screening diagnosing diseases. Although many automated techniques have been developed for tumor segmentation; however, still due to fuzzy & complex background position with other organs. As result, creating consid...

BACKGROUND AND PURPOSE Endovascular coil embolization is used increasingly to treat cerebral aneurysms. The purpose of our study was to quantify the incidence of CT-detectable abnormalities after aneurysm coiling and map the radiographic and clinical progression. MATERIALS AND METHODS We reviewed the radiographic and clinical sequelae of 30 consecutive patients with aneurysms who underwent en...

BACKGROUND The aim of this study was to investigate the efficacy of computed tomography (CT) findings for characterizing pleural effusions with the use of attenuation values. MATERIAL/METHODS One hundred and twenty eight patients with pleural effusions on thoracic CT who underwent thoracentesisis within two weeks were studied. Pleural effusions were classified as exudates or transudates accor...

OBJECTIVES The objective of this study was to identify an injection strategy leading to repeatable nanoparticle deposition patterns in tumours and to quantify volumetric heat generation rate distribution based on micro-CT Hounsfield unit (HU) in magnetic nanoparticle hyperthermia. METHODS In vivo animal experiments were performed on graft prostatic cancer (PC3) tumours in immunodeficient mice...

The history of medical imaging can be dated from Rontgen’s discovery and first clinical use of X-rays in 1895. These first X-ray images were humble portents of the increasingly important role which medical imaging has assumed, particularly in the last 25 years. In fact, diagnostic radiology continued more or less unchanged from Rontgen’s discovery until digital computers were integrated with el...

OBJECTIVE To test the effects of heart rate, body mass index (BMI) and noise level on interscan and interobserver variability of coronary artery calcium (CAC) scoring on a prospective electrocardiogram (ECG)-triggered 64-slice CT. MATERIALS AND METHODS One hundred and ten patients (76 patients with CAC) were scanned twice on prospective ECG-triggered scans. The scan parameters included 120 kV...