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Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
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Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
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Cardiac catheterization is an invasive diagnostic technique used to identify and evaluate structural and functional diseases of the heart and major blood vessels. This technique diagnoses congenital heart disease, coronary artery disease, valvular heart disease, and coronary spasms and assesses ventricular function. It helps guide treatment decisions, including the need for revascularization procedures like percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and...
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DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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Updated: Aug 20, 2025

Standardized Hemorrhagic Shock Induction Guided by Cerebral Oximetry and Extended Hemodynamic Monitoring in Pigs
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Correcting Coagulopathy for Image-Guided Procedures.

Paula M Novelli1, Joshua M Tublin2, Philip D Orons1

  • 1Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.

Seminars in Interventional Radiology
|November 21, 2022
PubMed
Summary
This summary is machine-generated.

Acquired coagulopathy requires careful management during invasive procedures. Advanced viscoelastic testing provides better data for tailored transfusion strategies, improving patient outcomes.

Keywords:
clotting disorderscoagulopathyhemorrhagehemostasisinterventional radiology

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Area of Science:

  • Interventional Radiology
  • Hematology
  • Anesthesiology

Background:

  • Patients with acquired coagulopathy frequently undergo percutaneous image-guided procedures.
  • Traditional preprocedural coagulation assessments relied on basic metrics like PT, PTT, INR, and platelet count.
  • Emerging viscoelastic testing offers more nuanced coagulation profile data.

Purpose of the Study:

  • To review procedural and patient-specific factors influencing hemorrhagic risk.
  • To outline strategies for optimizing coagulation correction in patients undergoing invasive procedures.
  • To highlight the shift from generalized to titrated transfusion algorithms.

Main Methods:

  • Review of current literature on coagulopathy assessment and management.
  • Analysis of factors contributing to hemorrhagic risk in interventional procedures.
  • Evaluation of viscoelastic testing in defining coagulation profiles.
  • Discussion of specific reversal agents and tailored transfusion algorithms.

Main Results:

  • Viscoelastic testing provides superior data for assessing coagulation status compared to traditional methods.
  • Understanding patient- and drug-specific coagulation changes allows for more precise correction strategies.
  • Tailored algorithms lead to less generalized and more titrated transfusion or correction approaches.

Conclusions:

  • Modern coagulation management for invasive procedures benefits from advanced testing like viscoelastic assays.
  • Personalized correction strategies based on detailed coagulation profiles improve safety and efficacy.
  • A comprehensive approach considering procedural and patient factors is crucial for managing hemorrhagic risk.