Extract: Serial studies of arterial and alveolar oxygen, carbon dioxide, and nitrogen tensions, arterial pH, and ratios of dead space: tidal volume were made in 24 nondistressed premature infants. By ...

The influence of gravity on the distributions of ventilation and blood flow, as demonstrated by the effects of posture, is discussed and explained on the theoretical basis of gravitational gradients ...

Nuclear medicine provides imaging modalities that can be used to observe physiological processes in the human body, particularly in the bones, heart, lungs, renal system and brain.

Educating physicians about ventilation-perfusion scanning as an alternative to CT for the diagnosis of pulmonary embolisms led to a 23 percent decrease in patient exposure, according to a study ...

Lubdha M. Shah, MD is the director of spine imaging. Dr. Shah’s clinical and research interests include functional MRI, diffusion tensor imaging, MR perfusion imaging and MR spectroscopy in brain and ...

When you breathe, a certain fraction of your air enters the lungs and blood flows through the capillaries. When this ratio is above or below 0.8, you may have ventilation/perfusion (V/Q) mismatch. A V ...

Noncontrast CT is commonly used to diagnose acute stroke because of its ability to detect acute hemorrhage, although it is less sensitive for early detection of ischemic stroke. The American Academy ...

Nuclear medicine provides imaging modalities that can be used to observe physiological processes in the human body, particularly in the bones, heart, lungs, renal system and brain.