CONTEXT Appropriate surgical exploration and resection of pancreatic carcinoma depends on accurate preoperative evaluation. OBJECTIVE Determine the accuracy of endoscopic ultrasound in predicting the need for surgical exploration in patients with solid pancreatic masses deemed by computer tomography to be resectable without venous grafting (absence of distant metastatic disease or major vascu...

To the Editor: Dermatopathic lymphadenitis (DL) represents a rare benign lymphatic hyperplasia commonly associated with exfoliative or eczematoid dermatitis. DL was also reported to be a potential mimicker of lymphoma.[1] Here, we report the 18F‐fluorodeoxyglucose (18F‐FDG) positron emission tomography/ computer tomography (PET/CT) results and the histological findings of a 40‐year‐old female p...

Hepatic artery aneurysms occur infrequently and are often difficult to diagnose. Non-invasive procedures such as ultrasound or computer assisted tomography have not been considered suitable for definitive diagnosis and angiography is usually required. A patient is described in whom a mycotic hepatic artery aneurysm developed during the course of subacute bacterial endocarditis. The definitive d...

Projective computer tomography and image reconstruction of discrete structure of materials Computer tomography is efficiently used in different applied areas, particularly for investigation of the material's structure. Traditional approach requires scanning the object with a lot of angles and reconstruction of images, using sufficiently difficult mathematical operations as, for example, the inv...

BACKGROUND Sarcoidosis is a rare condition that is often misdiagnosed as malignant tumors due to the similar clinical manifestations and imaging findings. CASE PRESENTATION We encountered a 56-year-old Chinese woman who had a chief complaint of a persistent cough. The chest computer tomography (CT) revealed mediastinal and bilateral hilar lymph node enlargement, and positron emission tomograp...

X-ray refraction-based computer tomography imaging is a well-established method for nondestructive investigations of various objects. In order to perform the 3D reconstruction of the index of refraction, two or more raw computed tomography phase-contrast images are usually acquired and combined to retrieve the refraction map (i.e. differential phase) signal within the sample. We suggest an appr...

-Hepatic cancer is the fifth most common cancer in the world and the majority of patients with liver cancer as a result will die within one year. Computer Aided Diagnosis (CAD) systems help a great deal in aiding the detection and diagnosis of cancer. They serve as an effective second opinion. Computed Tomography (CT) is one of the commonly used imaging modalities in the cancer domain since it ...

statement of the problem in order to replace lost tooth of patients, we use dental implants which are common. therefore, accurate measuring of bone height and width before placing implants is necessary. the aim of this study is evaluating the accuracy of linear and spiral tomography in careful determination of implant site sizes in comparison with gold standard (cbct). material and methods this...

Conventional and enhanced computed tomographic (CT) examinations were performed in 103 patients with myocardial infarction for evaluation of the diagnostic usefulness of CT. After intravenous bolus injection of contrast material, an initial filling defect and late enhancement of the infarcted myocardium appeared on the cardiac CT images. These two findings were direct evidence of myocardial inf...