Cardiac resynchronization therapy (CRT) has shown benefits in patients with end-stage heart failure, depressed left ventricular (LV) ejection fraction (< or = 35%), and prolonged QRS duration (> or = 120 ms). However, based on the conventional criteria, 20% to 40% of patients fail to respond to CRT. Studies have focused on important parameters for predicting CRT response, such as LV dyssynchron...

islamic golden age, 9-12 century ad, was the period through which persian scientists and physicians were most influential in improving medical sciences including cardiovascular knowledge. although post-islamic golden age witnessed a number of great persian scholars moving cardiovascular concepts forward, they failed to become as well known as their predecessors. one of these scholars was hakim ...

Forty years have passed since the introduction of single-photon emission computed tomography (SPECT)in nuclear cardiology. During this period, there was a shift from Anger-type gamma cameras equipped with one detector to those with multiple detectors. Semiconductor detectors have also become available in recent years. Devices with X-ray CT and positron emission tomography (PET)-compatible ones ...

A graphically based, computerized report generation program has been developed and deployed at a dozen nuclear medicine facilities. The system is based on the Macintosh graphical user interface (GUI) and has been designed to be easy to learn and use. The system allows the nuclear medicine practitioner to generate reports for any nuclear medicine or nuclear cardiology procedure without transcrip...