Ventilation-Perfusion SPECT with Tc-99m-DTPA Versus Technegas: A Head-to-Head Study in Obstructive and Nonobstructive Disease
Lung scintigraphy is primarily used to diagnose pulmonary embolism. Ventilation imaging is often performed using Tc-99m-DTPA or Technegas, an ultrafine dispersion of Tc-99m-labeled carbon. Despite the common use of these radioaerosols, they have not been compared in an intraindividual study, and not with ventilation-perfusion (V/P) SPECT. The aim of the present head-to-head study was to systematic
