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Related Concept Videos

Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

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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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Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging Studies for Cardiovascular System III: X-Ray

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The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
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Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

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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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Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
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Computed Tomography01:10

Computed Tomography

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Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
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Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

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Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
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Related Experiment Video

Updated: Aug 4, 2025

Author Spotlight: Integrated Photoacoustic, Ultrasound, and Angiographic Tomography (PAUSAT) for NonInvasive Whole-Brain Imaging of Ischemic Stroke
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Author Spotlight: Integrated Photoacoustic, Ultrasound, and Angiographic Tomography (PAUSAT) for NonInvasive Whole-Brain Imaging of Ischemic Stroke

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Update on imaging in Code Stroke.

M Grau García1, M Pérez Bea1, A Angulo Saiz1

  • 1Médico adjunto de Radiodiagnóstico, Sección Urgencias, Hospital Universitario Basurto, Bilbao, Vizcaya, Spain.

Radiologia
|April 6, 2023
PubMed
Summary
This summary is machine-generated.

Code Stroke protocols utilize advanced imaging like CT and MRI to quickly identify acute ischemic strokes. This multidisciplinary approach ensures timely patient selection for reperfusion therapies, improving outcomes.

Keywords:
Artificial intelligenceBrain/diagnostic imagingCerebro/imagen diagnósticaComputed tomographyDigitized image processingIctusImagen de perfusiónInteligencia artificialMagnetic resonance imagingPatient selectionPerfusion imagingProcesos de imagen digitalizadosResonancia magnéticaSelección de pacientesStrokeTomografía computarizada

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A Magnetic Resonance Imaging Protocol for Stroke Onset Time Estimation in Permanent Cerebral Ischemia
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Area of Science:

  • Neurology
  • Radiology
  • Emergency Medicine

Background:

  • Acute ischemic stroke requires rapid diagnosis and treatment for effective reperfusion.
  • Multimodal imaging is crucial for selecting appropriate patients for interventions.

Purpose of the Study:

  • To outline the diagnostic imaging pathway within the "Code Stroke" protocol.
  • To detail the role of various imaging modalities in acute stroke management.

Main Methods:

  • Conventional non-contrast CT/MRI for hemorrhage detection and early infarct assessment using the ASPECTS scale.
  • Angiographic studies to evaluate vessel stenosis, occlusions, and collateral circulation for mechanical thrombectomy candidates.
  • Perfusion imaging to differentiate infarct core from penumbra in patients with extended or unknown symptom onset.

Main Results:

  • Non-contrast imaging is essential for ruling out bleeding.
  • ASPECTS scoring aids in quantifying early ischemic changes.
  • Perfusion studies are vital for treatment decisions in later time windows.

Conclusions:

  • The "Code Stroke" protocol integrates multimodal imaging for efficient acute ischemic stroke detection.
  • Radiologist interpretation of semi-automatic software outputs is critical for accurate diagnosis and treatment selection.