Whole-body magnetic resonance imaging for staging patients with high-risk prostate cancer.

Background: Staging patients with high-risk prostate cancer (HRPCa) with conventional imaging of computed tomography (CT) and bone scintigraphy (BS) is suboptimal. Therefore, we aimed to compare the accuracy of whole-body magnetic resonance imaging (WBMRI) with conventional imaging to stage patients with HRPCa.

Methods: We prospectively enrolled patients with newly diagnosed HRPCa (prostate-specific antigen ≥20 ng/ml and/or Grade Group ≥4).

Multimodality imaging of urinary tract tuberculosis.

Imaging is a key component of diagnosis and treatment response evaluation of urinary tract tuberculosis (UT TB). Tuberculosis can have a long latency, but if found early, one may have the opportunity to prevent complications such as ureteral strictures, obstructive nephropathy, contracted (thimble) bladder, renal parenchymal destruction/calcification, and renal failure. Imaging can aid in diagnosis and differential diagnoses, evaluate the extent of disease and complications, and guide image-directed biopsy, surgical planning, and evaluation of treatment response.

Low KeV virtual monoenergetic images for detecting low dose iodine- or alternative Gd-based IV contrast agents.

Background: The recent shortage of iodine-based intravenous contrast and its cost highlight the need for limiting dose and alterative agents.

Purpose: To quantify radiodensity (Hounsfield Units, HU) improvement and potential iodine dose reduction with low keV imaging compared to conventional polyenergetic reconstructions on dual source (DSCT) and dual layer (DLCT) CT and to assess potential utility of non-iodine gadolinium-alternatives with low keV imaging.

Materials And Methods: This phantom study used dilutions of three commercially-available contrast agents scanned by DSCT and DLCT.

Erythrocyte nano-ghosts with dual optical and magnetic resonance characteristics.

Significance: Fluorescent organic dyes provide imaging capabilities at cellular and sub-cellular levels. However, a common problem associated with some of the existing dyes such as the US FDA-approved indocyanine green (ICG) is their weak fluorescence emission. Alternative dyes with greater emission characteristics would be useful in various imaging applications.

Real-Time Ultrasound-Computed Tomography Fusion with Volume Navigation to Assess Pancreatic Cystic Lesions.

Transabdominal ultrasound is a promising imaging modality for pancreatic cystic lesions. This study aims to determine if transabdominal ultrasonography with CT fusion (TAUS-f) using volume navigation can be used to measure pancreatic cystic lesions (PCLs) compared to CT alone. We evaluated 33 patients prospectively with known PCLs.