MRI and contrast-enhanced ultrasound monitoring of prostate microwave focal thermal therapy: an in vivo canine study.

Purpose: To compare the value of diffusion-weighted MRI (DWI), dynamic contrast-enhanced (DCE) MRI, and microbubble contrast-enhanced ultrasound (CEUS) for assessment of the thermal lesion created by interstitial microwave heating of the normal canine prostate.

Materials And Methods: A microwave antenna was inserted into each lobe of the prostate in seven dogs to induce coagulation necrosis. Immediately after therapy the lesion was assessed using CEUS, DCE-MRI, and DWI.

Detecting endoleaks in aortic endografts using contrast-enhanced sonography.

Objective: We performed this pilot study to investigate the utility of contrast-enhanced sonography for the detection of endoleaks in patients with abdominal aortic endografts.

Conclusion: Contrast-enhanced sonography evaluation of abdominal aortic endografts is a technically feasible alternative to our current practice standard.

Aortic endografts: detecting endoleaks using contrast-enhanced ultrasound.

Evaluation of aortic endografts is an exciting new application for contrast enhanced ultrasound. Detection of endoleaks is critical as they may lead to progressive enlargement of a treated aneurysm with a risk of aneurysm rupture. In this article, contrast enhanced ultrasound is presented as a potentially accurate, safe and economical alternative to CTA, the current practice standard, for endoleak detection.

Radiofrequency ablation of hepatocellular carcinoma: predicting success using contrast-enhanced sonography.

Objective: This pilot study compared the utility of immediate postprocedural contrast-enhanced sonography with that of delayed enhanced sonography and CT or MRI in assessing the success of radiofrequency ablation of hepatocellular carcinoma.

Subjects And Methods: Twenty-two lesions (1.5-3.

Fungal liver infection in immunocompromised patients: depiction with multiphasic contrast-enhanced helical CT.

Purpose: To retrospectively assess multiphasic (nonenhanced, arterial phase, and portal venous phase) computed tomography (CT) of the liver for depiction of hepatic fungal infection in immunocompromised patients.

Materials And Methods: The institutional ethics review board approved the study and waived the requirement for informed consent. Sixty multiphasic hepatic CT examinations were performed in 39 immunocompromised patients who fulfilled the criteria for having probable or proved fungal liver infection.