Cardiac Magnetic Resonance Versus Single-Photon Emission Computed Tomography for Detecting Coronary Artery Disease and Myocardial Ischemia: Comparison with Coronary Angiography.

Background: This study aimed to compare the diagnostic accuracy of stress single-photon emission computed tomography (SPECT) and stress cardiac magnetic resonance (CMR) for the assessment of coronary artery disease (CAD) in the same patients, using coronary angiography as the reference standard.

Methods: Thirty patients with known or suspected CAD who were referred for exercise SPECT myocardial perfusion imaging (MPI) for the evaluation of myocardial ischemia underwent stress CMR MPI and computed tomography coronary angiography (CTCA) or selective coronary angiography (SCA). The data from the two stress modalities were compared against the data from angiography.

Although Non-diagnostic Between Necrosis and Recurrence, FDG PET/CT Assists Management of Brain Tumours After Radiosurgery.

Aim: To re-evaluate the role of (18)F-fluoro-deoxy-D-glucose (FDG) positron emission tomography/ computer assisted tomography (PET/CT) co-registered with magnetic resonance imaging (MRI) in differentiating adverse radiation effect (ARE) from tumour recurrence after Gamma Knife radiosurgery of brain tumours.

Patients And Methods: Twenty-seven PET/CT studies co-registered with MRI were performed on 16 patients after radiosurgery, with 12/16 patients having multiple radiosurgery treatments. Long term follow-up was used for evaluation, with 3/16 patients being histopathologically confirmed.

Imaging of coronary artery bypass grafts by computed tomography coronary angiography.

In recent years, computed tomography coronary angiography is commonly performed as a follow-up examination after coronary artery bypass graft surgery. Coronary grafts owing to their minimal motion are well visualized by computed tomography coronary angiography, allowing radiologists to assess their patency noninvasively with very high diagnostic accuracy. The purpose of this pictorial essay is to provide an excellent overview of the anatomy and findings concerning coronary artery bypass grafts.

Coronary artery anomalies in adults: imaging at dual source CT coronary angiography.

Congenital abnormalities of the coronary arteries have an incidence of 1%, and most of these are benign. However, a small number are associated with myocardial ischaemia and sudden death. Various imaging modalities are available for coronary artery assessment.

Percutaneous radiofrequency ablation for malignant liver tumours in challenging locations.

Purpose: To evaluate the treatment results of radiofrequency ablation (RFA) for primary and metastatic malignant liver tumours in challenging locations and also to present the treatment strategy that was used in these cases.

Patients And Methods: From January 2007 to January 2010, we performed CT-guided RFA on 528 lesions in 402 patients (265 men and 137 women; mean age 65.1 years, range 19-82 years) with liver tumours (primary and metastatic) of which 98 lesions in 84 patients (55 men and 29 women; mean age 67.

Leydig cell tumour of the ovary localised with positron emission tomography/computed tomography.

Androgen-producing ovarian tumours can lead to assessment difficulties because of their small size. We present a case of virilising steroid cell ovarian tumour in a 41-year-old woman localised with Fluorine-18-Deoxyglucose Positron Emission Tomography/Computed Tomography ((18)FDG-PET/CT). Although the biochemical evaluation pointed to an ovarian source of androgen, diagnostic attempts to localise the source of hyperandrogenism with transvaginal ultrasound (US), and magnetic resonance imaging (MRI) of pelvis failed.

Correlation of radiation dose and heart rate in dual-source computed tomography coronary angiography.

Background: Computed tomography coronary angiography (CTCA) has been widely used since the introduction of 64-slice scanners and dual-source CT technology, but the relatively high radiation dose remains a major concern.

Purpose: To evaluate the relationship between radiation exposure and heart rate (HR), in dual-source CTCA.

Material And Methods: Data from 218 CTCA examinations, performed with a dual-source 64-slices scanner, were statistically evaluated.

The impact of FDG-PET/CT on the management of breast cancer patients with elevated tumor markers and negative or equivocal conventional imaging modalities.

Objective: To evaluate the clinical impact of fluorodeoxyglucose (FDG)-PET/computed tomography (CT) scan on restaging breast cancer patients with rising tumor markers and negative or equivocal findings in conventional imaging studies.

Methods: We studied 46 patients with breast cancer of an average age of 57.6 years (ranging from 38 to 68 years).

Patient presenting with lipoma of the index finger: a case report.

Introduction: Lipomas can be found anywhere in the body with the majority located in the head and neck region as well as in the shoulder and back. They are not very common in the hand and those involving the fingers are very rare. Although, it is not the only case reported, lipoma of the index finger is very uncommon.

Mixed tumor of the vagina: sonographic and magnetic resonance imaging findings.

Mixed tumor of the vagina is a rare benign neoplasm that is composed of epithelial and mesenchymal cells. The majority of tumors are asymptomatic and simple tumor excision is curative. We report a case with pathological confirmation that was seen in a 42-year-old woman.

Computed tomography-guided radiofrequency ablation of hepatocellular carcinoma: treatment efficacy and complications.

Aim: To evaluate the efficacy and complications of computed tomography (CT)-guided radiofrequency ablation (RFA) of unresectable hepatocellular carcinoma (HCC).

Methods: A retrospective study of 282 patients (231 males, 51 females, age range: 44-76 years, mean age: 62 years) with HCC (322 lesions) who had been treated by CT-guided RFA over a period of 5 years, was performed. The diameter of the tumors ranged from 1.

Hysterosalpingography: technique and applications.

Hysterosalpingography (HSG) remains an important radiologic procedure in the investigation of infertility and has become a commonly performed examination due to recent advances of reproductive medicine. HSG demonstrates the morphology of the uterine cavity, the lumina, and the patency of the fallopian tubes. In this review article, we present the technical parameters of the examination, indications, contraindications, and possible complications of HSG.

A case of primary isolated non-Hodgkin's lymphoma of the esophagus in an immunocompetent patient.

Primary non-Hodgkin's lymphoma of the esophagus is a rare disease. A case of primary isolated non-Hodgkin's lymphoma of the esophagus in a 77-year-old man without acquired immunodeficiency syndrome is presented. We describe the clinical features and the imaging findings (barium swallow, endoscopic ultrasonography and CT) of a biopsy proven B-cell lymphoma with diffuse transmural involvement of the esophagus wall, which was discovered incidentally.

Lower limb veins color and spectral Doppler ultrasonography examination. An examination protocol.

Lower extremity's venous pathology was traditionally investigated by intravenous venography. Nowadays Color Doppler flow imaging is widely accepted as a well established, noninvasive method for the evaluation of deep pelvic and lower extremity's venous system. The vast majority of authors conclude that the method can safely replace diagnostic venography in all patients with venous thrombosis, thrombophlebitis and valve or communicating veins insuffciency.

Pancreas divisum: magnetic resonance cholangiopancreatography findings.

Pancreas divisum is a common congenital abnormality of the pancreas that results from the lack of fusion between the dorsal and ventral pancreatic ducts during foetal development. In these cases, the dorsal duct becomes the main pancreatic duct and drains most of the pancreas. Pancreas divisum is mainly asymptomatic, but the prevalence of pancreas divisum is higher in patients with chronic abdominal pain and idiopathic pancreatitis.

Percutaneous CT-guided fine-needle aspiration of pulmonary lesions: Results and complications in 409 patients.

The purpose of this study was to report our centre's experience in the results and complications of percutaneous CT-guided lung biopsy. A retrospective review of 409 patients who underwent percutaneous CT-guided fine-needle aspiration of suspicious lung lesions for more than 5 years was carried out. Nodule sizes ranged from 0.