Ultrasonic assessment of residual urine volume

Rageth, J. C.; Langer, K.

doi:10.1007/bf00262402

Cited by 44 publications

(18 citation statements)

References 9 publications

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“…As was mentioned in a study by Rageth and Langer [16], the 2-dimensional method gives no improvement in results when compared to Weitzel and Blagojevic's [13] formula (table 1). Therefore we have omitted ap plying this method to our material.…”

Section: Methods Using 2-dimensional Measurements In Transversal And/mentioning

confidence: 85%

“…Other methods have been developed by Rageth and Langer [ 16]. They made a nomogram in which the largest square sections (transversal and longitudinal) were re lated with the real residual volume (Vc).…”

Section: Discussionmentioning

confidence: 99%

“…Making stepwise lon gitudinal sections of the bladder of 0.5 cm and tracing [16] AT /AL 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 5 18 29 39 49 57 65 73 81 88 95 102 108 115 121 127 133 10 26 44 59 72 85 97 108 119 130 140 150 160 169 179 188 197 15 33 55 74 91 107 122 136 150 163 176 189 201 213 225 236 248 20 39 65 87 107 126 143 160 176 192 207 222 236 251 264 278 291 25 44 73 98 121 142 162 182 200 218 235 252 268 284 300 315 330 30 49 81 109 134 158 180 201 222 241 261 279 297 315 332 349 the circumference of each section, the volume between 2 areas is calculated by the computer and added to the volume of the former steps. Although this method is more time-consuming, it does give better results than the method described below (table 5).…”

Section: Methods Using 2-dimensional Measurements In Transversal And/mentioning

confidence: 99%

“…In the literature we find a percentage of inaccuracy of more than 25% with this method, partly due to the large variations in bladder shape and partly to suboptimal imaging [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16], In this study we have examined the fac tors that can influence the imaging quality and the accu racy of determination. We have also investigated, whether the accuracy of the method for volume estima tion is influenced by the shape of the bladder, which is related to sex and age, by the residual volume itself and clinical factors such as the size of the prostate or uterus and neurogenic diseases [12],…”

Section: Introductionmentioning

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: Methods Using 2-dimensional Measurements In Transversal And/mentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Section: Methods Using 2-dimensional Measurements In Transversal And/mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ultrasonic Determination of the Residual Bladder Volume

Hendrikx¹,

Doesburg

Stappen³

et al. 1989

Urol Int

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show abstract

“…Method 1 and 2 are compared and method 2 (Vt = A S . w) is found to be the most accurate with an average deviation of only 11 %, which is considerably better than method 1 (28%) and also in comparison with the results published earlier (Poston et ai., 1983;Hakenberg et ai., 1983;Rageth and Langer, 1982). The difference between method 1 and 2 is highly significant (p < 0'005).…”

Section: Discussionmentioning

confidence: 90%

Measurement of residual urine volume by means of ultrasonic scanning: a comparative study

Kjeldsen‐Kragh

1988

Spinal Cord

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Effect of transurethral resection of the prostate on detrusor instability and urge incontinence in elderly males

Gormley

Griffiths

McCracken

et al. 1993

Neurourology and Urodynamics

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Detrusor instability is common in men with evidence of outflow obstruction due to benign prostatic hypertrophy and typically reverses in about two thirds of patients after transurethral resection of the prostate (TURP). It is also common among the elderly without outflow obstruction and may lead to urge incontinence. To determine whether TURP has an effect on detrusor instability and urge incontinence in elderly men, or whether these abnormalities are due to other age-associated changes, 12 males (mean age 80 years) with urge incontinence or frequency and urgency of micturition, and symptomatic benign prostatic hypertrophy, were studied by 24-hour monitoring of incontinence and videourodynamic examination, before and after TURP; 7/12 patients were significantly cognitively impaired. Preoperatively, all patients showed detrusor instability, which reversed postoperatively in only one patient, a significantly smaller proportion than that consistently reported in younger patients. Preoperatively, 11/12 patients were incontinent. After TURP, 8/11 patients had an improvement in the amount of incontinence, by up to 458 g in 24 hours. Those who improved had been urodynamically more severely obstructed preoperatively. Those with the most improvement were also cognitively impaired. We conclude that, in the geriatric population, detrusor instability and urge incontinence may be the result of age-associated changes and not secondary to obstruction. Detrusor instability is likely to persist following TURP. Preoperative urodynamic assessment of obstruction in the incontinent male with benign prostatic hypertrophy may be useful since the severity of incontinence responds well to TURP if there is marked obstruction. Cognitive impairment should not be a deterrent to operation.

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Ultrasonic assessment of residual urine volume

Cited by 44 publications

References 9 publications

Ultrasonic Determination of the Residual Bladder Volume

Ultrasonic Determination of the Residual Bladder Volume

Measurement of residual urine volume by means of ultrasonic scanning: a comparative study

Effect of transurethral resection of the prostate on detrusor instability and urge incontinence in elderly males

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