Attenuation correction (AC) is essential for the generation of artifact-free and quantitatively accurate positron emission tomography (PET) images. PET AC based on computed (CT) frequently results in artifacts attenuation-corrected images, these mainly originate from CT PET-CT mismatches. The combined with a magnetic resonance imaging (MRI) scanner (PET/MRI) more complex than PET/CT, given that...

Lung cancer causes the most deaths worldwide and has one of lowest five-year survival rates all types. It is reported that more than half patients with lung die within year being diagnosed. Because mediastinal lymph node status important factor for treatment prognosis cancer, aim this study to improve predictive value in assessing computed tomography (CT) lymph-node malignancy primary cancer. T...

Step-stair and banding artifacts may result from irregular ventricular rhythm caused by atrial fibrillation or premature ectopic ventricular contractions. In the case reported here, severe banding and misalignment artifacts occurred due to electrocardiographic noise mimicking ectopic beats. Severe EKG noise or pseudo-ectopic beats may cause rare but serious artifacts during cardiac-CT acquisiti...

A 57-year-old patient presents with a large mass at the right groin two months after cryoballoon-guided pulmonary vein isolation (PVI) (Fig. 1, left panel). A pseudo-aneurysm of the superficial femoral artery is seen on CT with a small, encapsulated active bleeding region (asterisk) surrounded by a large haematoma (arrow, Fig. 1, right panel). The pseudo-aneurysm of our patient was clinically m...

Necrotizing soft tissue infections (NSTIs) are polymicrobial infections with high morbidity and mortality. We report a case of retroperitoneal NSTI in an immunocompetent young male, with clinical symptoms and signs mimicking acute pancreatitis (pseudo-Cullen's and pseudo-Grey-Turner's signs. The initiating lesion was a pustule which progressed and mimics acute pancreatitis. CT scan showed featu...

We present a case of pulmonary lobar torsion secondary to pseudo-Meigs syndrome. A 45-year-old woman with colonic cancer and metastatic ovarian cancer was suffering from dyspnea. CT scan showed massive pleural effusion, air trapping and twisted bronchus of the middle lobe. At thoracotomy, the middle lobe was torqued at 180 degrees around its bronchovascular pedicle in a counterclockwise directi...