UNLABELLED Ventilation-perfusion (V/Q) SPECT has been reported to improve the diagnostic performance of V/Q imaging for the diagnosis of pulmonary embolism (PE). However, only sparse data based on an objective reference test are available, and the criteria used for interpretation have varied widely. Therefore, the aim of our study was to assess the performance of V/Q SPECT using various criteri...

BACKGROUND SIRT is an emerging treatment for liver tumours which relies on the selective uptake by tumour of 90Y microspheres following hepatic arterial injection. Response rates of around 90% are reported. Hepatic arterial injection of MAA gives an indication of the expected distribution of 90Y microspheres within the liver. This study sought to determine if the MAA scan could be predictive of...

To overcome the physiological barrier in solid tumors (i.e., tumor hypertension), a large volume of material is required via an intratumoral injection. Alternatively, a method of reduction in tumor hypertension is also feasible. In this study, we focused on the physiological response after an intratumoral infusion of various therapeutic agents. Tumor interstitial fluid pressure (TIFP) was inter...

STUDY OBJECTIVES To characterize arterial oxygenation in patients referred to Mayo Clinic for liver transplantation with a diagnosis of portopulmonary hypertension (portoPH). DESIGN Prospective study. SETTING Liver transplantation program and pulmonary hypertension clinic in a tertiary referral center. PARTICIPANTS Twenty consecutive patients with abnormal pulmonary hemodynamics documente...

Mucociliary clearance (MCC) is an important mechanism for removing inhaled particles, secretions and cellular debris from the respiratory tract. Here, a direct measurement of tracheal mucus velocity (TMV) for assessment of MCC, suitable for clinical and research use, is reported, and a comparison is made of TMV in normal subjects and patients with chronic obstructive pulmonary disease (COPD). A...

We banded the left pulmonary artery in rats to investigate, in the same animal, the effect of both increased and decreased flow on the lung vasculature and to determine how these hemodynamic states modify the structural changes produced by a 2-week exposure to hypobaric hypoxia. In unanesthetized rats, pressures were recorded from the main pulmonary artery and aorta via indwelling catheters, ca...

Acute hydrothorax after commencing continuous ambulatory peritoneal dialysis A 53-year-old woman with end-stage renal disease developed dyspnea soon after commencing continuous ambulatory peritoneal dialysis (CAPD) for 1 day. Low drainage volume of dialysate (infusion 1500 ml and drainage 1100 ml) was also noted. The chest radiograph taken at emergency department showed massive right-sided pleu...

UNLABELLED Cryptogenic stroke might relate to paradoxical embolism stemming from right-to-left shunt caused by patent foramen ovale (PFO). We performed radionuclide venography using the Valsalva maneuver, followed by (99m)Tc-macroaggregated albumin (MAA) brain SPECT to investigate the fate of emboli originating from the lower extremities. METHODS Ten patients (9 men, 1 woman; mean age, 61 +/-...

background: inflammatory process has a substantial contribution in the development of anemia in chronic hemodialysis patients. low serum albumin in hemodialysis patients is considered a marker of inflammation. the present longitudinal study aimed to determine the relationship between low baseline serum albumin and future development of anemia. methods: the population of this study consisted of ...