Role of 11C-choline PET/CT in the re-staging of prostate cancer patients with biochemical relapse and negative results at bone scintigraphy.

Aim: to evaluate the utility of (11)C-choline PET/CT in prostate cancer (PC) patients who have demonstrated a biochemical recurrence and a negative bone scintigraphy (BS).

Materials And Methods: 123 consecutive PC patients (mean age 67.6 years; range 54-83) with a biochemical relapse (mean PSA value 3.

QRS pattern and improvement in right and left ventricular function after cardiac resynchronization therapy: a radionuclide study.

Background: Predicting response to cardiac resynchronization therapy (CRT) remains a challenge. We evaluated the role of baseline QRS pattern to predict response in terms of improvement in biventricular ejection fraction (EF).

Methods: Consecutive patients (pts) undergoing CRT implantation underwent radionuclide angiography at baseline and at mid-term follow-up.

Radionuclide angiographic determination of regional left ventricular systolic function during rest and exercise in patients with nonischemic cardiomyopathy treated with cardiac resynchronization therapy.

Cardiac resynchronization therapy (CRT) can improve global left ventricular (LV) function. However, limited data are available on regional LV contractility at rest and during exercise. The aim of the present study was to prospectively investigate the effects of CRT on regional LV ejection fraction (EF), global LVEF, and dyssynchrony, during rest and exercise, using radionuclide angiography.

Suboptimal awareness of radiologic dose among patients undergoing cardiac stress scintigraphy.

Objective: Patients undergoing radiologic and nuclear medicine examination often receive little, if any, information related to the radiologic dose and consequent potential long-term cancer risk. This "economical with the truth" communication may violate basic patients' rights. We assessed the information perceived by patients on the radiation dose exposure during nuclear medicine examinations.