Related Experiment Video
Updated: Jan 26, 2026
14:59
Neuronavigation and Laparoscopy Guided Ventriculoperitoneal Shunt Insertion for the Treatment of Hydrocephalus
Published on: October 14, 2022
10.3K
Increased Water Content in Periventricular Caps in Patients without Acute Hydrocephalus
T Sichtermann1, J K Furtmann2, S Dekeyzer2,3
1From the Departments of Diagnostic and Interventional Neuroradiology (T.S., J.K.F., S.D., G.G., M.W., O.N.) tsichtermann@ukaachen.de.
AJNR. American Journal of Neuroradiology
|April 13, 2019
Summary
Periventricular caps show higher water content than white matter lesions on MR imaging. Quantitative water mapping can differentiate these findings, aiding in characterizing T2-hyperintense diseases.
Area of Science:
- Neuroimaging
- Radiology
- White Matter Diseases
Background:
- Periventricular caps are common MR findings.
- They are thought to result from increased interstitial water due to transependymal transport dysfunction.
Purpose of the Study:
- To compare quantitative water content between periventricular caps and white matter lesions.
- To determine if water content measurement can differentiate these entities.
Main Methods:
- A prospective study involved 50 patients.
- Quantitative multiple-echo, gradient-echo MR imaging water-mapping was used.
Main Results:
- Periventricular caps had significantly higher water content than white matter lesions (P = .002).
- Periventricular caps showed 17% ± 5% higher water content than normal white matter; white matter lesions showed 11% ± 4% higher.
- Water content >15% higher than normal white matter differentiated periventricular caps with 93% specificity and 60% sensitivity (P < .001).
Conclusions:
- Quantitative MR imaging effectively differentiates periventricular caps from white matter lesions.
- Water content quantification is a valuable tool for characterizing T2-hyperintense lesions.
Related Concept Videos
01:19Body Water Content and Fluid Compartments
4.0K
Life's biochemical processes occur within aqueous solutions. Solutes are substances that are dissolved within these solutions. The human body contains a variety of solutes, which can differ across various body parts. These can encompass proteins—such as those responsible for clotting and carbohydrate transport—as well as electrolytes. In medicine, an electrolyte is often described as a mineral ion derived from a salt possessing an electric charge. Examples include sodium ions...
4.0K
01:23States of Water
56.5K
Water exists in any one of the three classical states: solid (ice), liquid (water), and gas (steam or water vapor). The state of water depends on i) the intermolecular forces that draw molecules together and ii) the kinetic energy that leads to movements that pull them apart.
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
56.5K
02:16Stereotype Content Model
15.4K
The Stereotype Content Model (SCM) was first proposed by Susan Fiske and her colleagues (Fiske, Cuddy, Glick & Xu, 2002; see also Fiske, 2012 and Fiske, 2017). The SCM specifies that when someone encounters a new group, they will stereotype them based on two metrics: warmth—or that group’s perceived intent, and how likely they are to provide help or inflict harm—and competence—or their ability to carry out that objective. Depending on the warmth-competence...
15.4K
01:25Increased Body Temperature
6.5K
A body temperature above 38°C (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
6.5K
01:17Increased pulse rate
1.1K
Tachycardia is a condition marked by an abnormally fast or irregular heart rate, surpassing the typical resting rate. In adults, tachycardia is characterized by a pulse rate ranging from 100 to 180 beats per minute. The increased heart rate can result in inadequate blood flow to various body parts, ultimately diminishing the oxygen supply to organs and tissues.
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
1.1K
02:34Water and Mineral Acquisition
35.5K
Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
35.5K