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Related Concept Videos

Brain Imaging01:14

Brain Imaging

763
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
763
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

945
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
945
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

420
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...
420
Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

391
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...
391
Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

420
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,...
420
Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

647
Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
647

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Point of Care Transcranial Color-Coded Duplex Ultrasound of the Middle Cerebral Artery
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Imaging in Neurocritical Care Practice.

Craig Williamson1, Larry Morgan2, Joshua P Klein3

  • 1Department of Neurosurgery and Neurology, University of Michigan, Ann Arbor, Michigan.

Seminars in Respiratory and Critical Care Medicine
|December 21, 2017
PubMed
Summary

Neuroimaging, including computed tomography (CT) and magnetic resonance imaging (MRI), is crucial in neurocritical care for diagnosing conditions like stroke and brain injury. Safety during patient transport for imaging studies is also emphasized.

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Area of Science:

  • Neurology
  • Radiology
  • Critical Care Medicine

Background:

  • Neuroimaging and neurological examinations are fundamental in neurocritical care.
  • Accurate image interpretation is vital for timely clinical decisions in the neurological ICU (NICU).

Purpose of the Study:

  • To review common neuroimaging applications in the neurocritical care setting.
  • To explore safety guidelines for transporting critically ill patients for radiological studies.

Main Methods:

  • Review of computed tomography (CT) for rapid detection of intracranial hemorrhage, edema, and elevated intracranial pressure.
  • Discussion of magnetic resonance imaging (MRI) for detailed assessment of ischemia, diffuse axonal injury, and prognostication in stable patients.
  • Inclusion of nuclear medicine and point-of-care ultrasound as ancillary tools in neurocritical care.

Main Results:

  • CT is the primary neuroimaging modality in the ICU due to speed and ability to detect acute intracranial pathologies.
  • MRI offers superior detail for specific conditions in stable patients.
  • Ultrasound and nuclear medicine serve important, albeit often ancillary, roles.

Conclusions:

  • Various neuroimaging modalities are essential tools in neurocritical care, each with specific strengths.
  • Patient safety during transport for imaging procedures is a critical consideration.