From the first measurements of the distribution of pulmonary blood flow using radioactive
tracers by West and colleagues (J Clin Invest 40: 1–12, 1961) allowing gravitational …

Emission tomography provides three-dimensional, quantitative images of the distribution of
radiotracers used to mark physiological, metabolic, or pathological processes. Quantitative …

In vivo radioactive tracer and microsphere studies have differing conclusions as to the
magnitude of the gravitational effect on the distribution of pulmonary blood flow. We …

Objectives To evaluate dual-layer dual-energy computed tomography (dlDECT)–derived
pulmonary perfusion maps for differentiation between acute pulmonary embolism (PE) and …

Subtraction computed tomography (SCT) is a technique that uses software-based motion
correction between an unenhanced and an enhanced CT scan for obtaining the iodine …

Hyperpolarized xenon‐129 is a noninvasive contrast agent for lung MRI, which upon
inhalation dissolves in parenchymal structures, thus mirroring the gas‐exchange process for …

Abstract Ventilation-perfusion (VA/Q) matching, the regional matching of the flow of fresh gas
to flow of deoxygenated capillary blood, is the most important mechanism affecting the …

Purpose: To validate a fast gradient echo sequence for rapid (9 s) quantitative imaging of
lung water. Materials and Methods: Eleven excised pig lungs were imaged with a fast GRE …

We used quantitative Single Photon Emission Computed Tomography (SPECT) to study the
effect of the upright posture on regional lung blood flow and ventilation. Nine (upright) plus …

Objective Left heart failure (LHF) is a common and frequently overlooked condition owing to
insufficient diagnostic methods. This can potentially delay onset of treatment. Our clinical …