Urinary bladder volumetry by means of a single retrosymphysically implantable ultrasound unit

Neurourology and Urodynamics
C SeifP Braun

Abstract

Optimal voiding is a crucial issue for patients with neurogenic bladder dysfunctions to prevent long-term damage to the urinary tract. In prior studies, implantable ultrasound (US) sensors have proved an appropriate method of measuring the urinary bladder volume. Their disadvantage is that they tend to dislocate in chronic applications as they are fixed directly onto the bladder wall. In the present study, we describe an implantable US volumetry unit that does not require fixing to the bladder wall and consists of a single receiver-transmitter unit. Six Göttinger minipigs were anesthetized in ITN; a sensor was stitched behind the symphysis into the periosteum and aligned to the bladder so that an US measurement could take place in ventro-dorsal direction. In steps of 50 ml, the bladder was filled up to 250 ml via a transurethral catheter; after each filling step the volume was measured three times and compared to the instilled volume. On average the measurements with implanted US differed from the actual bladder filling by 77.4% at a bladder filling of 50 ml ("error" messages were included as 0 ml), 3.8% at 100 ml, 3.8% at 150 ml, and 0.3% at 200 ml, and 3.6% at 250 ml. When the empty bladder (= 0 ml) was measured, the US senso...Continue Reading

References

Nov 1, 1991·Biomedizinische Technik. Biomedical Engineering·P R Preussner
Jun 20, 1969·Science·H E Huxley
May 1, 1972·IEEE Transactions on Bio-medical Engineering·R D DreherW E Bradley
Dec 1, 1980·Acta Physiologica Scandinavica·B Uvelius, G Gabella
May 1, 1994·The Journal of Urology·E L KoldewijnG S Brindley
Jul 1, 1997·The Journal of Spinal Cord Medicine·J S WalterM Dokmeci
Feb 7, 1998·Neurourology and Urodynamics·J R ScheepeP Alken
Nov 18, 1998·Current Opinion in Obstetrics & Gynecology·S T Hasan, D E Neal
Nov 24, 1998·Scandinavian Journal of Urology and Nephrology·C R NwosuM R Honest
Dec 23, 1998·Archives of Physical Medicine and Rehabilitation·L I BihW Chow
Jun 29, 2000·Der Urologe. Ausg. A·J R ScheepeS Schumacher
Apr 27, 2001·Mayo Clinic Proceedings·D S ElliottM L Blute
Apr 16, 2002·Current Opinion in Urology·Suzie Venn, Tony Mundy
Apr 26, 2002·Seminars in Pediatric Surgery·Jamie B LoweMartin A Koyle
Jul 24, 2002·International Journal of Antimicrobial Agents·D Sauerwein
Aug 20, 2002·Spinal Cord·E J Chartier-KastlerF Richard

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Citations

Aug 1, 2015·Annals of Biomedical Engineering·José ZariffaMagdy M Hassouna
Dec 6, 2019·Neurourology and Urodynamics·Ilse M GroenendijkBertil F M Blok

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