Does estimation of prostate volume by abdominal ultrasonography vary with bladder volume: A prospective study with transrectal ultrasonography as a reference

Bapat, S.; Purnapatre, Satyajeet S; Pai, Ketan V; Yadav, Pushkaraj B; Padhye, Abhijit S; Bodhe, YG

doi:10.4103/0970-1591.29114

Cited by 9 publications

(13 citation statements)

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“…MRI is rarely used in prostatic volume estimation but is more accurate than TRUS (Jeong et al 2008;Tewari et al 1996). However, some investigators have compared actual prostate volume with TRUS (Watanabe et al 1971;Bapat et al 2006), while others used planimetry as a reference volume (Eri et al 2002;Aarnink et al 1995).…”

Section: Introductionmentioning

confidence: 99%

Assessment of in vivo calculation with ultrasonography compared to physical sections in vitro: a stereological study of prostate volumes

et al. 2010

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We compared three methods for the determination of prostate volume: prostate volume measured via transrectal ultrasonography (TRUS); the Cavalieri method for measuring physical sections; and volume by displacement. TRUS volumes were calculated by the prolate ellipsoid volume formula. Five patients underwent TRUS examination of the prostate prior to radical prostatectomy; specimens were measured when freshly excised. Mean prostate volume by fluid displacement, before formalin fixation was 52.8 ± 21.5 cm(3), and after formalin fixation 50.4 ± 20.9 cm(3). Volumes determined by the Cavalieri principle (point-counting and planimetry) were 47.8 ± 19.3 and 49.1 ± 20.5 cm(3); volume measured by TRUS was 42.9 ± 21.9 cm(3). Thus TRUS underestimated prostate volume by 21.4%, but excellent agreement was found between actual volume and point counting techniques. We believe that the classic ellipsoid formula is inadequate for determining prostate volume.

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Section: Introductionmentioning

confidence: 99%

Assessment of in vivo calculation with ultrasonography compared to physical sections in vitro: a stereological study of prostate volumes

et al. 2010

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“…Our experience over the past 13 years has shown that the prostate can often be adequately visualised and measured with smaller urinary bladder volumes (150 mL or less) than the full bladder (300–400 mL) stated in available instruction manuals. This fact has been partly confirmed by Bapat et al . They showed that a minimal urinary bladder volume of 100–200 mL is essential for near accurate estimation of prostate volume by TAUS.…”

Section: Introductionmentioning

confidence: 72%

“…They showed that a minimal urinary bladder volume of 100–200 mL is essential for near accurate estimation of prostate volume by TAUS. The study also revealed that with increasing bladder volume, the volume of the prostate increases disproportionately to its actual volume . A study has also recorded inaccurate prostatic volume measurements during TRUS with volumes being underestimated 80% of the time by greater than 30% in 55% of the patients studied .…”

Section: Introductionmentioning

confidence: 95%

“…Prostate scanning is commonly requested by physicians for male patients above the age of 40 years for both diagnostic and screening purposes . The accurate determination of prostatic volume is important in determining the degree of hyperplastic enlargement, the resultant tendency toward urinary‐tract outflow obstruction, and the preferred surgical treatment option.…”

Section: Introductionmentioning

confidence: 99%

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Prostatic volume determination by transabdominal ultrasonography: Does accuracy vary significantly with urinary bladder volumes between 50 to 400 mL?

Brakohiapa

Botwe

Sarkodie

2019

J of Medical Radiation Sci

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Introduction In Ghana, trans‐abdominal ultrasonography is the main sonographic method of prostatic volume evaluation. The examinations are done when the patient's bladder is full. However, the delay and the discomforting experiences associated with a full bladder have been well documented. In an attempt to investigate other less discomforting options, this study was undertaken to determine if sonographic transabdominal prostatic evaluations performed at urinary bladder volumes of 50–99 mL differ significantly to evaluations done at volumes of 100–199, 200–299 and 300–399 mL. Methods A prostatic study of adult patients was undertaken in Accra, from 2014 to 2015. Using an ultrasound machine, 79 sets of prostatic measurements were recorded at a urinary bladder volume of 50–99 mL (V1 as our reference volume), and at least one of three other urinary bladder volumes (V2 = 100–199 mL, V3 = 200–299 mL and V4 = 300–399 mL), in 66 males. Twelve of the participants had multiple sets of prostate volume measurements. SPSS was used to analyse the data. T‐test, Bland‐Altman plots and linear regression were used to compare and test for the existence of proportional biases in measurements. Results There was a statistically significant difference in prostatic volumes recorded at V1 and V2 (P = 0.017). However, the prostatic volume differences recorded for V1/V3, and V1/V4 groups of data were all not statistically significant (P > 0.05). The limits of agreement for the set of measurements spread from approximately −29 to +18 mL for V1/V2, −48 to +36 mL for V1/V3 and −12 to +12 mL for V1/V4 variables. There was no proportional bias in the V1/V2 (P = 0.55) and V1/V4 (P = 0.463) measurements. Conclusion Urinary bladder volume of 50–99 mL produces prostatic volume measurements comparable to volumes measured in patients with a full (300–399 mL), or nearly full urinary bladder (200–299 mL). A urinary bladder volume of 50–99 mL may therefore be adequate for scanning the prostate gland, and is likely to be tolerated much better by patients.

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“…Patients with minimal bladder volume of100 to 200 ml were subjected to USG for near correct estimation of prostate volume by USG. (6) Ellipsoid formula V= lengthxheightxwidthx0.52. PSAD is measured using PSA/prostatic volume.…”

Section: Mode Of Screening the Patientsmentioning

confidence: 99%

A Comparative Study of Prostatic Specific Antigen Density and Its Correlated Histopathology in the Diagnosis of Benign and Malignant Prostatic Diseases

Shanbhag¹,

R²

2015

jemds

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BACKGROUND: Carcinoma of prostate gland is the most common malignancy above 65 yrs of age in men. Most patients with early-stage Ca prostate are asymptomatic. The presence of symptoms often suggests locally advanced or metastatic disease. It is important to detect Ca prostate at an early stage so that mortality due to this malignancy can be minimized. The specific threshold for prostate-specific antigen (PSA) to delineate patients who are at the highest risk has been controversial. It is wiser to refine PSA by its derivative parameter like PSAD (PSA/Vol.) which can be used as a better diagnostic tool in early detection of Ca Prostate. KEYWORDS: Digital Rectal Examination (DRE), PSA, Transabdominal ultrasonography, PSA density, Histopathological examination, BPH, CaP. INTRODUCTION:Herophilus of Chalcedon in 300 B.C. was the first to use the term -prostate‖ because of organ's location-standing before urinary bladder.All elderly men will exhibit some enlargement of prostate accompanied by various symptoms of prostatism. The distress caused, demands relief and surgery can bring dramatic improvement in these senior patients. Before attempting surgical treatment it is worth investigating the patient to rule out malignancy.Benign prostatic hyperplasia (BPH) is a pathologic process that contributes to, but is not the sole cause of, lower urinary tract symptoms (LUTS) in aging men. Previously held ideas that the clinical symptoms of BPH (Prostatism) are simply due to a mass-related increase in urethral resistance are too simplistic. It is now clear that a significant portion of LUTS is due to age-related detrusor dysfunction and other conditions such as polyuria sleep disorders, and a variety of systemic medical conditions unrelated to the prostate-bladder unit.BPH is the most common benign tumour in men, and its incidence is age related. The prevalence of histological BPH in autopsy studies rises from approximately 20% in men aged 41-50, to 50% in men aged 51-60, and to >90% men older than 80. Although clinical evidence of disease occurs less commonly, symptoms of prostatic obstruction are also age related. At age 55, approximately 25% of men report obstructive voiding symptoms. At age 75, 50% of men complain of a decrease in the force and calibre of their urinary stream.Risk factors for the development of BPH are poorly understood. Some studies have suggested a genetic predisposition, and some have noted racial differences. Approximately 50% of men under the age of 60 who undergo surgery for BPH may have a heritable form of the disease. This form is most likely an autosomal dominant trait, and first-degree male relatives of such patients carry an increased relative risk ofapproximately fourfold.

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Does estimation of prostate volume by abdominal ultrasonography vary with bladder volume: A prospective study with transrectal ultrasonography as a reference

Cited by 9 publications

References 0 publications

Assessment of in vivo calculation with ultrasonography compared to physical sections in vitro: a stereological study of prostate volumes

Assessment of in vivo calculation with ultrasonography compared to physical sections in vitro: a stereological study of prostate volumes

Prostatic volume determination by transabdominal ultrasonography: Does accuracy vary significantly with urinary bladder volumes between 50 to 400 mL?

A Comparative Study of Prostatic Specific Antigen Density and Its Correlated Histopathology in the Diagnosis of Benign and Malignant Prostatic Diseases

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