Post Void Residual
Post Void Residual - Related Videos
01:12
Total Voids in Concrete
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2024
Total voids in concrete encompass gel water volume, capillary pores, and entrapped air. Gel water (retained within the cement hydration products) and physically entrapped or adsorbed water are significant for the hydration process. For complete hydration, it's estimated that the space needed for the products of a cubic centimeter of cement doubles. Capillary pores constitute the unoccupied space within the hydrated cement paste, with their size largely influenced by the water-to-cement ratio...
01:26
Residual Stresses
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2024
Residual stresses reside in a structure even after removing the original stress inducer. This phenomenon often arises from varied plastic deformations across different parts of a structure. Consider a rod stretched beyond its yield point. It will not regain its original length due to permanent deformation. Even after load removal, the rod does not entirely lose stress because of uneven plastic deformations, resulting in residual stresses. The computation of these stresses in structures is...
01:07
Residual Plots
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2023
A residual plot is a statistical representation of data used to analyze correlation and regression results. It helps verify the requirements for drawing specific conclusions about correlation and regression. To obtain the residual plot, first, the residual for each data value is calculated, which is simply the vertical distance between the observed and the predicted value obtained from the regression equation. When the residual values are plotted against the variable x, it is called a residual...
06:39
Real-Time Void Spot Assay
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Cited by 14 •
2023
This article describes a new method to study mouse voiding behavior by incorporating video monitoring in the conventional void spot assay. This approach provides temporal, spatial, and volumetric information on the voiding events and details of mouse behavior during the light and dark phases of the day.
01:22
Imaging Studies VI: Voiding Cystourethrography and Cystography
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2025
Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
FAQs
It provides an objective measure that can be considered alongside urinary flow and lower urinary tract function. The remaining volume may help investigate whether incomplete emptying is associated with impaired detrusor activity, meaning reduced bladder muscle function, or outlet obstruction. This makes the measurement useful as a functional indicator when evaluating urinary-system behavior.
Bladder ultrasound estimates the remaining volume, whereas catheterization directly measures urine left in the bladder. This distinction matters when clinicians or bioengineers assess the performance of a diagnostic tool, because the measurement technique affects how residual volume is obtained and interpreted. Either approach is used shortly after voiding to characterize the same post-urination state.
Repeated measurements can show changes in bladder function rather than relying on a single observation. In research, these measurements provide objective data for modeling urinary systems and evaluating whether bladder emptying changes during assessment or treatment. A series of results can also support patient-specific intervention planning by linking measured bladder performance with an individual's functional needs.
The individual first urinates, and the residual is quantified shortly afterward. A bladder ultrasound can estimate the remaining urine, while catheterization can directly measure it. The resulting value is then considered with urinary flow and lower urinary tract function to evaluate bladder emptying. This workflow produces an objective measurement for clinical assessment and bioengineering analysis.
They are useful when researchers evaluate urinary flow, model lower urinary tract function, or assess technologies related to bladder emptying. The measurement can provide objective data for testing diagnostic tools, examining continence devices, and studying treatment performance. Because it reflects bladder emptying after urination, it connects device or intervention outcomes with a measurable aspect of urinary-system function.
The measurement gives clinicians and engineers quantitative information about an individual's bladder emptying. When repeated over time, those data can reveal changes in function and help relate urinary performance to a particular intervention. This supports patient-specific planning by providing an objective basis for evaluating diagnostic tools, continence devices, or treatments rather than relying only on general functional expectations.