Descending thoracic aortic aneurysm revealing metastasis of a soft tissue fibrosarcoma: a case report and review of the literature.

Background: Review of the first documented case of aortic wall metastasis from a limb sarcoma.

Case Presentation: In a 56-year-old woman with a diagnosis of a high-grade limb fibrosarcoma, an aortic metastasis was revealed by a fast growing aneurysm of the descending thoracic aorta. This was managed with an endoprosthesis.

Diagnostic accuracy of unenhanced, contrast-enhanced perfusion and angiographic MRI sequences for pulmonary embolism diagnosis: results of independent sequence readings.

Objectives: To independently evaluate unenhanced, contrast-enhanced perfusion and angiographic MR sequences for pulmonary embolism (PE) diagnosis.

Methods: Prospective investigation, including 274 patients who underwent perfusion, unenhanced 2D steady-state-free-precession (SSFP) and contrast-enhanced 3D angiographic MR sequences on a 1.5-T unit, in addition to CTA (CT angiography).

Diagnostic accuracy of magnetic resonance imaging for an acute pulmonary embolism: results of the 'IRM-EP' study.

Background: Magnetic resonance imaging (MRI) has not been validated as an alternative diagnostic test to computed tomography angiography (CTA) in patients with suspicion of a pulmonary embolism (PE).

Objectives: To evaluate performance of current MRI technology in diagnosing PE, in reference to a 64-detector CTA.

Patients/methods:   Prospective investigation including 300 patients with a suspected PE, referred for CTA after assessment of clinical probability and D-dimer testing.

Perfusion defects after pulmonary embolism: risk factors and clinical significance.

Background: Little is known about residual abnormalities after pulmonary embolism (PE).

Objectives: To assess risk factors and the clinical significance of perfusion defects in patients with PE.

Patients/methods: Consecutive patients receiving at least 3 months of anticoagulant for an acute PE were included in a prospective cohort study.

Management of lobar torsion following lung transplantation.

We report 4 cases of acute lobar torsion in patients who had undergone bilateral lung transplantation. Bronchoscopy showed complete obstruction in only 2 of them. Torsion was confirmed by computed tomography in coronal minimal and maximal intensity projections with reconstruction.

Contribution of indirect computed tomographic venography to the diagnosis of postpartum venous thromboembolism.

Background: The diagnostic value of indirect computed tomographic venography (CTV), following thoracic computed tomographic angiography (CTA), has not been specifically evaluated in postpartum patients with suspected pulmonary embolism.

Objectives: To assess the diagnostic value of CTV in postpartum venous thromboembolism.

Methods: We reviewed all CTA and CTV procedures performed during the last 7 years in our institution for suspected pulmonary embolism during the postpartum period.

Is It possible to recognize pulmonary infarction on multisection CT images?

Purpose: To retrospectively determine sensitivity and specificity of four findings for distinguishing pulmonary infarction from other causes of peripheral pulmonary consolidations on multidetector computed tomographic (CT) images, with other CT and clinical findings as reference.

Materials And Methods: Institutional review board approved the study and waived informed consent. Three independent radiologists blindly analyzed selected multisection CT images of 50 pulmonary infarctions-not showing direct arterial signs of pulmonary embolism-and 100 peripheral consolidations of other origins.

UV-light induced radiation recall dermatitis after a chemoradiotherapy organ preservation protocol.

This case report documents a UV-light-induced recall phenomenon and reviews the medical literature. In this patient, we observed a severe recall phenomenon precipitated by an extensive sunlight exposure after a chemoradiotherapy organ preservation protocol. Radiation recall phenomenon is a rare but well-described phenomenon, without clear radiation or drug-specific characteristics.

[Imaging of pulmonary arterial hypertension].

Introduction: The investigation of pulmonary arterial hypertension (PAH) requires a rigorous aetiological assessment in which imaging modalities play an important role.

Background: The chest x-ray may show non-specific signs such as cardiomegaly and dilatation of the pulmonary arteries, and also allows examination of the lung parenchyma. Echocardiography is the essential screening tool and allows evaluation of left ventricular function.

Cartilage thickness matching of selected donor and recipient sites for osteochondral autografting of the medial femoral condyle.

Osteochondral transplantation requires a careful assessment of the location of donor plugs. A mismatch of cartilage thickness between the donor and recipient site may lead to abnormal stresses and poor function. The objective of this study was to characterize the recommended donor and recipient sites with respect to cartilage thickness in younger individuals.

Software volumetric evaluation of doubling times for differentiating benign versus malignant pulmonary nodules.

Objective: The purpose of our study was to evaluate the reliability of software-calculated doubling times for discerning malignant versus benign nodules.

Materials And Methods: CT lung analysis volumetric software was used to retrospectively calculate the doubling times of 63 solid noncalcified nodules by comparing nodule volumes on baseline and follow-up CT scans obtained a median of 3.7 months apart.