Evaluation of response to conventional chemotherapy and radiotherapy by perfusion computed tomography in non-small cell lung cancer (NSCLC).

Background: To evaluate changes in perfusion computed tomography (PCT) parameters induced by treatment with conventional chemotherapy (CCT) alone or with CCT and radiation therapy (RT) in patients with non-small cell lung cancer (NSCLC) and to determine whether these changes correlate with response as defined by the response evaluation criteria in solid tumours version 1.1 (RECIST-1.1).

Characteristics of computed tomography perfusion parameters in non-small-cell-lung-cancer and its relationship to histology, size, stage an treatment response.

Objectives: To analyze computed tomography perfusion (CTP) parameters in NSCLC.

Materials And Methods: Prospective study, 152 patients with NSCLC. CTP parameters were correlated with histology, stage, size and response to conventional chemotherapy/radiotherapy.

Quantitative myocardial perfusion with stress dual-energy CT: iodine concentration differences between normal and ischemic or necrotic myocardium. Initial experience.

Objectives: To determine whether the quantification of iodine with stress dual-energy computed tomography (DECT-S) allows for the discrimination between a normal and an ischemic or necrotic myocardium using magnetic resonance (MR) as a reference.

Methods: This retrospective study was approved by the institutional review board, with waiver of informed consent. Thirty-six cardiac MR and DECT-S images from patients with suspected coronary artery disease were evaluated.

Benign soft-tissue lesions of the fingers: radiopathological correlation and clinical considerations.

Soft-tissue lesions of the fingers are commonly found in daily clinical practice. A wide range of tumors and pseudotumors have been described in this location, and the majority of them are benign. Ganglion cysts are the most common entity, and the localized type of tenosynovial giant cell tumors are the most frequent solid condition.

[Extraperitoneal bladder rupture coinciding with bone fragments: the case for surgical treatment].

Introduction: In closed traumatic bladder ruptures, a surgical treatment of the intraperitoneal rupture, and a conservative approach to the extraperitoneal one, with bladder catheter, antibiotics and confirmation of bladder wound closure after two to three weeks-, was recommended. Only recently, attention was paid to the importance of the presence of bone fragments of the pelvic fractures, that in the vecinity of a bladder catheter or urinary infection may give raise to either severe pelvic infection or permanent urinary fistula.

Patients And Method: The two cases of extraperitoneal bladder rupture here presented, demonstrate the difficulties of a secure diagnosis by CT, and the potential severity of the existence of bone fragments impronting the bladder disruption.