Perfusion is the passage of fluid through the lymphatic system or blood vessels to an organ or a tissue. The practice of perfusion scanning is the process...
17 KB (2,121 words) - 07:59, 6 May 2024
A ventilation/perfusion lung scan, also called a V/Q lung scan, or ventilation/perfusion scintigraphy, is a type of medical imaging using scintigraphy...
13 KB (1,215 words) - 09:48, 12 October 2024
Perfusion MRI or perfusion-weighted imaging (PWI) is perfusion scanning by the use of a particular MRI sequence[which?]. The acquired data are then post-processed...
11 KB (1,260 words) - 07:59, 6 May 2024
Myocardial perfusion imaging or scanning (also referred to as MPI or MPS) is a nuclear medicine procedure that illustrates the function of the heart muscle...
18 KB (1,985 words) - 13:39, 23 April 2025
ventilation/perfusion scan (V/Q scan). Using a small amount of inhaled or injected radioactive material called a tracer for visualization, a V/Q scan is a type...
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Pulmonary embolism (section Ventilation/perfusion scan)
scanning, and identifies more emboli (without necessarily improving the outcome) compared to VQ scanning. A ventilation/perfusion scan (or V/Q scan or...
87 KB (9,772 words) - 21:28, 4 April 2025
Perfusion CT or CT Perfusion is a type of perfusion scanning using computed tomography. It is helpful in the evaluation of the vascularity of tissue in...
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respiratory failure due to MMPH has been reported. In one study ventilation-perfusion scans were abnormal in 34 of 35 LAM patients. The most common abnormality...
100 KB (11,094 words) - 06:40, 11 January 2025
Ventilation–perfusion coupling is the relationship between ventilation and perfusion in the respiratory and cardiovascular systems. Ventilation is the...
22 KB (2,491 words) - 13:44, 25 December 2024
brain, where CT perfusion imaging can often detect poor brain perfusion well before it is detected using a conventional spiral CT scan. This is better...
155 KB (16,219 words) - 20:02, 5 May 2025
respiratory system, ventilation/perfusion (V/Q) mismatch refers to the pathological discrepancy between ventilation (V) and perfusion (Q) resulting in an abnormal...
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been used, although this more correctly is referred to as isotope perfusion scanning. The technique was first developed in 1927 by the Portuguese physician...
23 KB (2,604 words) - 22:54, 20 April 2025
Single-photon emission computed tomography (redirect from SPECT scan)
studies of dementia. 99mTc-exametazime SPECT scanning competes with fludeoxyglucose (FDG) PET scanning of the brain, which works to assess regional brain...
22 KB (2,663 words) - 03:51, 9 April 2025
Magnetic resonance imaging (redirect from Nuclear scanning)
contrast (DSC) MR perfusion". Radiopaedia. Retrieved 2017-10-14. Chen F, Ni YC (March 2012). "Magnetic resonance diffusion-perfusion mismatch in acute...
93 KB (10,796 words) - 20:18, 8 May 2025
Nuclear medicine (redirect from Radioisotope scanning)
ventilation and perfusion (V/Q) scan. The nuclear medicine V/Q scan is useful in the evaluation of pulmonary embolism. Thyroid scan with iodine-123 for...
39 KB (4,404 words) - 17:41, 1 May 2025
Scintigraphy (redirect from Gamma scanning)
scintigraphy is to diagnose pulmonary embolism, e.g. with a ventilation/perfusion scan and may be appropriate for excluding PE in pregnancy. Less common indications...
12 KB (1,239 words) - 16:07, 17 September 2024
reduced capacity of the blood to carry oxygen, compromised general or local perfusion, or inability of the affected tissues to extract oxygen from, or metabolically...
108 KB (11,680 words) - 23:27, 26 April 2025
scanning. If heart disease and lung disease have been excluded, a ventilation/perfusion scan is performed to rule out CTEPH. If unmatched perfusion defects...
91 KB (9,068 words) - 17:20, 27 April 2025
considered only when there are no serious comorbidites. A CT scan or a ventilation/perfusion scan may be useful to evaluate cases for surgical interventions...
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quantization, in signal processing Ventilation Quotient or Ventilation/perfusion scan, in medicine Veritable Quandary, a restaurant in Portland, Oregon, US...
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Technetium-99m (section Myocardial perfusion imaging)
Other ligands include sestamibi for myocardial perfusion imaging and mercapto acetyl triglycine for MAG3 scan to measure renal function. In 1970, Eckelman...
71 KB (7,782 words) - 16:36, 30 March 2025
Positron emission tomography (redirect from PET scan)
lower, and the scans take longer to acquire. However, this method allows a low-cost on-site solution to institutions with low PET scanning demand. An alternative...
74 KB (8,845 words) - 09:57, 15 May 2025
CTEPH, which is a rare but serious complication of VTE. Ventilation-perfusion scanning and echocardiography are the initial diagnostic tests for CTEPH, and...
15 KB (1,676 words) - 22:33, 12 May 2025
Usually fasting is not required for scanning purpose and patients can have light breakfast in the morning of the scan day. The technetium-99m DMSA binds...
4 KB (421 words) - 05:51, 12 September 2024
agent for myocardial perfusion scan Adenoscan (adenosine injection) – Pharmacologic stress agent for myocardial perfusion scan AmBisome (amphotericin...
28 KB (2,530 words) - 14:53, 5 April 2025
Cardiac magnetic resonance imaging perfusion (cardiac MRI perfusion, CMRI perfusion), also known as stress CMR perfusion, is a clinical magnetic resonance...
11 KB (1,412 words) - 06:00, 8 September 2024
and American neuroradiologist (brain-imaging expert) who pioneered perfusion scanning of the brain. Wintermark is currently a Professor and the Chair of...
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occlusion. With perfusion MRI detecting both the infarcted core and the salvageable penumbra, the latter can be quantified by DWI and perfusion MRI. DWI showing...
64 KB (9,260 words) - 19:41, 2 May 2025
radiation include X-rays, CT scans, mammography, lung ventilation and perfusion scans, bone scans, cardiac perfusion scan, angiography, radiation therapy...
35 KB (3,909 words) - 20:16, 25 April 2025
was introduced in the 1990s as an alternative to ventilation/perfusion scanning (V/Q scan), which relies on radionuclide imaging of the blood vessels of...
12 KB (1,437 words) - 15:47, 18 April 2025