Ultrasound Assessment of Residual Urine: A Quantitative Method

Beacock, C. J. M.; Roberts, E. E.; Rees, R. W. M.; Buck, A. C.

doi:10.1111/j.1464-410x.1985.tb06299.x

Cited by 60 publications

(26 citation statements)

References 12 publications

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“…In their investigation Doust et al [8] found an error percentage of 20%. In 1985, Beacock et al [10] found a good correlation in their patient group between the ultrasonically calculated volumes (also using the planimetric method) and the vol umes measured by catherization. Also in our patients the planimetric method gives more accurate results, but it is more time-consuming.…”

Section: Discussionmentioning

confidence: 99%

“…It is not appropriate to compare results of different investigations, because: (a) Certain investigators applied the planimetric method to longitudinal sections [8], whereas others like Beacock et al [ 10] applied it to trans versal sections. Furthermore, in other methods de scribed the parameters are determined in different ways, (b) There is a great difference in image quality of differ ent ultrasonic equipment, depending on type and stage of development, (c) Every investigator has examined dif ferent populations.…”

Section: Discussionmentioning

confidence: 99%

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Ultrasonic Determination of the Residual Bladder Volume

Hendrikx¹,

Doesburg

Stappen³

et al. 1989

Urol Int

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In a clinical study the ultrasonic determination of the residual bladder volume is evaluated by applying several echographic methods described in the literature. 163 patients (age 3–89 years, 114 males and 49 females) and 13 students were examined. Only in the latter group the bladder volume was also determined by a planimetric method. The most practical method showed a good agreement (with a maximum deviation of 25%) between the ultrasonically measured volumes and the volumes measured by catheterization in 66% of the cases. This method makes use of the formula V_us = 0.5(V_t + V₁), where V_us = residual volume estimated by ultrasonography; V_t = volume measured by the computer using the largest transversal ultrasonic bladder section, and V₁ = volume measured for the largest longitudinal section). Factors that influence image quality and accuracy because of changes in the form of the bladder were analyzed. The magnitude of the residual volume determined the image quality and the accuracy above all: lower volumes give worse images and are less accurate. Other factors seem to be relatively unimportant. To avoid discomfort, caused by urine tract infection and urethral strictures, ultrasonic determination of the residual urine is recommended for clinical application.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Ultrasonic Determination of the Residual Bladder Volume

Hendrikx¹,

Doesburg

Stappen³

et al. 1989

Urol Int

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“…Some authors [10] have also suggested the addition of a certain volume to get the most exact estimate of the residual urine volume. Furthermore, var ious reports cite a percentage of inaccuracy of 19-25.5% [14,[18][19][20]. Perhaps we should use the ellipsoid formula for only low residual urine volumes and utilize other parameters, such as width, height and depth [16] or sur face area [17], for high residual urine.…”

Section: Discussionmentioning

confidence: 99%

Ultrasonic Validation of Residual Bladder Volume in Postvaginal Hysterectomy Patients

Maymon¹,

Gilboa²,

Abramowicz

et al. 1991

Gynecol Obstet Invest

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Transverse and sagittal bladder diameters were measured with real-time ultrasound in 80 patients (100 measurements) during the first 2 days of postvaginal hysterectomy to assess the residual bladder volume and compared with the catheterization volume for the same patients. The sonographic method, with a 97.7% specificity and a negative predictive value of 89.5%, proved to be specific enough to eliminate the necessity of routine catheterization for measuring residual bladder volumes of > 150 cm³, thus decreasing the incidence of some major postoperative complications that can occur due to unnecessary catheterization.

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“…These examinations are more cumbersome than our technique and, thus require the child to be immobilization for longer periods. However they also share a high accuracy rate in the estimates 7 .…”

Section: Discussionmentioning

confidence: 99%

Comparison Of Urinary Bladder Volume In Children Using Suprapubic Ultrasonic Bi-Planner Technique With Voided Urine Volume

Sadek

Hossain²,

Akther³

et al. 2012

J. Dhaka Natl. Med. Coll. Hosp.

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Accurate determination of intravesical residual urine volume as well as bladder capacity is of significant importance in children. The ability to confirm these measurements non invasively in children avoids discomfort, urethral trauma and the introduction of urinary tract infection. Also, by avoiding the need for catheterization this technique permits more physiological assessment and allows for repeated examinations without fear and anxiety on the part of the patients. In this prospective study we assess the accuracy of the real time, hand held, ultrasonic device using suprapubic views and biplanar technique to determine intravesical volumes. Real time ultrasonography with suprapubic views and the described bi-planar technique to determine intravesical urine volume is simple, accurate and reproducible. It also is rapid and noninvasive, and can detect accurately an empty bladder in children. A strong correlation was found between the estimated bladder volume with our method and voided urine volume (0 ml, residual volume) .This study concluded that the modality used in this study has the potential to provide useful and reproducible information in the clinical evaluation of bladder function in children.

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Ultrasound Assessment of Residual Urine: A Quantitative Method

Abstract: A method of measuring residual urine volume using ultrasound is described. The volume is computed from serial parallel sections of the bladder. This method is found to be significantly more accurate than previously reported techniques and is quick and easy to perform.

Cited by 60 publications

References 12 publications

Ultrasonic Determination of the Residual Bladder Volume

Ultrasonic Determination of the Residual Bladder Volume

Ultrasonic Validation of Residual Bladder Volume in Postvaginal Hysterectomy Patients

Comparison Of Urinary Bladder Volume In Children Using Suprapubic Ultrasonic Bi-Planner Technique With Voided Urine Volume

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