PULSED ULTRASOUND COMBINED WITH ACOUSTIC PHASE-CHANGE NANOPARTICLES DISSOLVE PORCINE CORONARY ARTERY THROMBUS IN VIVO
نویسندگان
چکیده
منابع مشابه
The influence of acoustic impedance mismatch on post-stenotic pulsed-Doppler ultrasound measurements in a coronary artery model.
Acoustic impedance mismatch at the fluid-wall interface was shown to affect the spectra from an intravascular Doppler device in an in vitro model with a diameter typical of human coronary arteries. Measurements were obtained first under Poiseuille flow conditions with impedance mismatches of 0%, 7% and 12%, and then under stenosed conditions for the 0% and 7% mismatch cases. For the zero mismat...
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coronary artery contraction evoked by thromboxane A2 (TXA2) were studied in vitro. Ring preparations of porcine proximal coronary artery were suspended in a Magnus apparatus filled with Tyrode's solution at 370 C and aerated with 100%0 02, and the isometric tension of the contractions was measured. Insulin itself caused neither contraction nor relaxation. Insulin had no significant effect on th...
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This case documents the finding of a spontaneous plaque rupture with thrombus formation in the left main coronary artery of a patient who presented with an infarction of the circumflex artery. This serendipitous observation supports the hypothesis that spontaneous plaque ruptures occur sporadically and do not necessarily lead to occlusion.
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A 50 year-old man was admitted for elective percutaneous coronary intervention. After rotational atherectomy was performed, perforation of the second diagonal coronary artery occurred, resulting in cardiac tamponade. Emergency pericardiocentesis was performed and intravenous protamine was administered. After tamponading the coronary perforation with prolonged intracoronary balloon inflation, co...
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BACKGROUND Intravascular ultrasound-derived virtual histology (VH IVUS) is used increasingly in clinical research to assess composition and vulnerability of coronary atherosclerotic lesions. However, the ability of VH IVUS to quantify individual plaque components, in particular the size of the destabilizing necrotic core, has never been validated. We tested for correlation between VH IVUS necro...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 2020
ISSN: 0735-1097
DOI: 10.1016/s0735-1097(20)31388-7