Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jvir.2024.11.006 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Redistribution and Embolization of a Uterine Fibroid with Ovarian Arterial Supply Using Temporary Bilateral Ovarian Artery Microballoon Occlusion.
J Vasc Interv Radiol
November 2024
Department of Radiology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8677, Japan.
Two-dimensional perfusion angiography permits direct visualization of redistribution of flow in hepatocellular carcinoma during b-TACE.
Radiol Med
June 2024
Department of Radiological Sciences, Oncology and Pathology, Policlinico Umberto I Hospital, Sapienza University of Rome, Viale del Policlinico 155, 00161, SapienzaRome, Italy.
Objectives: To demonstrate in vivo redistribution of the blood flow towards HCC's lesions by utilizing two-dimensional perfusion angiography in b-TACE procedures.
Material And Methods: In total, 30 patients with 35 HCC nodules treated in the period between January 2019 and November 2021. For each patient, a post-processing software leading to a two-dimensional perfusion angiography was applied on each angiography performed via balloon microcatheter, before and after inflation.
Magnetic Resonance Imaging of Lung Perfusion.
J Magn Reson Imaging
March 2024
Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany.
"Lung perfusion" in the context of imaging conventionally refers to the delivery of blood to the pulmonary capillary bed through the pulmonary arteries originating from the right ventricle required for oxygenation. The most important physiological mechanism in the context of imaging is the so-called hypoxic pulmonary vasoconstriction (HPV, also known as "Euler-Liljestrand-Reflex"), which couples lung perfusion to lung ventilation. In obstructive airway diseases such as asthma, chronic-obstructive pulmonary disease (COPD), cystic fibrosis (CF), and asthma, HPV downregulates pulmonary perfusion in order to redistribute blood flow to functional lung areas in order to conserve optimal oxygenation.
View Article and Find Full Text PDFPulmonary artery blood flow dynamics in chronic thromboembolic pulmonary hypertension.
Sci Rep
April 2023
Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho Kawaramachi-Hirokoji, Kamigyo-ward, Kyoto, 602-8566, Japan.
Article Synopsis
- Chronic thromboembolic pulmonary hypertension results from unresolved blood clots in the lungs, affecting blood flow dynamics, but research on this is limited.
- This study aimed to analyze how blood flow changed in patients with this condition before and after two treatments: pulmonary endarterectomy and balloon pulmonary angioplasty, using advanced computational fluid dynamics.
- Results showed that patients had lower blood flow velocity and higher stagnation compared to healthy controls; both treatments improved blood flow dynamics, with endarterectomy redistributing blood and angioplasty enhancing flow and vessel expansion.
Neovascularization, vascular mimicry and molecular exchange: The imaging of tumorous tissue aggressiveness based on tissue perfusion.
Eur J Radiol
June 2023
Department of the Imaging, University Hospital Pilsen and Charles University Medical Faculty in Pilsen, Czech Republic.
Angiogenesis in healthy tissue and within malignant tumors differs on many levels, which may partly be explained by vascular mimicry formation resulting in altered contrast material or different radiopharmaceuticals distributions. Failed remodulation results in changes in the molecular exchange through the capillary wall and those consequences affect the behavior of contrast agents and radiopharmaceuticals. One of the most indicative signs of malignant tissue is the increased permeability and the faster molecular exchange that occurs between the extracellular and intravascular spaces.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!