Detection of Recurrent Prostate Cancer With F-Fluciclovine PET/MRI.

Objective: Simultaneous PET/MRI combines soft-tissue contrast of MRI with high molecular sensitivity of PET in one session. The aim of this prospective study was to evaluate detection rates of recurrent prostate cancer by F-fluciclovine PET/MRI.

Methods: Patients with biochemical recurrence (BCR) or persistently detectable prostate specific antigen (PSA), were examined with simultaneous F-fluciclovine PET/MRI.

Regional myocardial long-axis strain and strain rate measured by different tissue Doppler and speckle tracking echocardiography methods: a comparison with tagged magnetic resonance imaging.

Aims: Compare four different echocardiographic methods, based on tissue Doppler imaging (TDI) and speckle tracking (ST) separately or combined, for long-axis strain and strain rate (SR) measurements, using magnetic resonance imaging (MRI) tagging as a reference.

Methods And Results: In 21 subjects (10 with myocardial infarction) peak systolic strain and systolic and early diastolic SR were measured by four different echo methods: (i) two-dimensional (2D) strain (B-mode); (ii) ST (custom software) of segment end-points (B-mode); (iii) similar to (ii), but combining ST with tissue Doppler tracking; (iv) strain from tissue Doppler velocity gradients (VG). Agreement with MRI tagging was better for strain than for SR.

A new tissue Doppler method for examination of left ventricular rotation.

This paper introduces a new semiautomatic method for assessing regional left ventricular (LV) rotation that uses the velocity field provided by tissue Doppler imaging (TDI). Left ventricular end-systolic angle of twist estimated by the new method has been compared with rotation by magnetic resonance imaging (MRI) tagging, by 2-D speckle tracking echocardiography (STE) and by a TDI method using the velocity difference between the tangential points on the LV circumference in 21 human subjects. The new TDI method gave lower absolute values for end-systolic twist angle than MRI and STE (agreement -4.

Real-time simultaneous triplane contrast echocardiography gives rapid, accurate, and reproducible assessment of left ventricular volumes and ejection fraction: a comparison with magnetic resonance imaging.

Objective: We sought to compare the feasibility, accuracy, and reproducibility of simultaneous triplane echocardiography for measurements of left ventricular (LV) volumes and ejection fraction (EF) with reference to magnetic resonance imaging (MRI).

Methods: Digital echocardiography recordings of apical LV views with and without intravenous contrast were collected from 53 consecutive patients with conventional 2-dimensional (2D) imaging and with simultaneous triplane imaging. MRI of multiple LV short-axis sections was performed with a 1.