Improving ultrasound-based prostate volume estimation.

Adult Aged Humans Male Middle Aged Organ Size Prospective Studies Prostate / diagnostic imaging Ultrasonography, Interventional / methods
Bullet Coefficient Ellipsoid Formula Prostate volume Trans-rectal ultrasound

Journal

BMC urology
ISSN: 1471-2490
Titre abrégé: BMC Urol
Pays: England
ID NLM: 100968571

Informations de publication

Date de publication:
24 Jul 2019
Historique:
received: 26 10 2018
accepted: 30 06 2019
entrez: 26 7 2019
pubmed: 26 7 2019
medline: 16 1 2020
Statut: epublish

Résumé

To define a new coefficient to be used in the formula (Volume = L x H x W x Coefficient) that better estimates prostate volume using dimensions of fresh prostates from patients who had transrectal ultrasound (TRUS) imaging prior to prostatectomy. The prostate was obtained from 153 patients, weighed and measured to obtain length (L), height (H), and width (W). The density was determined by water displacement to calculate volume. TRUS data were retrieved from patient charts. Linear regression analyses were performed to compare various prostate volume formulas, including the commonly used ellipsoid formula and newly introduced bullet-shaped formula. By relating measured prostate volumes from fresh prostates to TRUS-estimated prostate volumes, 0.66 was the best fitting coefficient in the (L x H x W x Coefficient) equation. This newfound coefficient combined with outlier removal yielded a linear equation with an R This study defines, for the first time, a coefficient based on freshly resected prostates as a reference to estimate volumes by imaging. Our findings support a bullet rather than an ellipsoid prostate shape. Moreover, substituting the coefficient commonly used in the ellipsoid formula by our calculated coefficient in the equation estimating prostate volume by TRUS, provides a more accurate value of the true prostate volume.

Sections du résumé

BACKGROUND BACKGROUND
To define a new coefficient to be used in the formula (Volume = L x H x W x Coefficient) that better estimates prostate volume using dimensions of fresh prostates from patients who had transrectal ultrasound (TRUS) imaging prior to prostatectomy.
METHODS METHODS
The prostate was obtained from 153 patients, weighed and measured to obtain length (L), height (H), and width (W). The density was determined by water displacement to calculate volume. TRUS data were retrieved from patient charts. Linear regression analyses were performed to compare various prostate volume formulas, including the commonly used ellipsoid formula and newly introduced bullet-shaped formula.
RESULTS RESULTS
By relating measured prostate volumes from fresh prostates to TRUS-estimated prostate volumes, 0.66 was the best fitting coefficient in the (L x H x W x Coefficient) equation. This newfound coefficient combined with outlier removal yielded a linear equation with an R
CONCLUSIONS CONCLUSIONS
This study defines, for the first time, a coefficient based on freshly resected prostates as a reference to estimate volumes by imaging. Our findings support a bullet rather than an ellipsoid prostate shape. Moreover, substituting the coefficient commonly used in the ellipsoid formula by our calculated coefficient in the equation estimating prostate volume by TRUS, provides a more accurate value of the true prostate volume.

Identifiants

DOI: 10.1186/s12894-019-0492-2 PMID: 31340802 PMC: PMC6657110
pubmed: 31340802
doi: 10.1186/s12894-019-0492-2
pii: 10.1186/s12894-019-0492-2
pmc: PMC6657110
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

68

Références

J Urol. 2001 Jul;166(1):125-9
pubmed: 11435838
Rev Urol. 2003;5 Suppl 4:S12-7
pubmed: 16985958
Urol Int. 2007;78(4):323-7
pubmed: 17495490
J Urol. 2008 Feb;179(2):501-3
pubmed: 18076916
Radiology. 2009 Jan;250(1):273-80
pubmed: 19092098
Br J Radiol. 2012 Nov;85 Spec No 1:S3-17
pubmed: 22844031
Biochem Med (Zagreb). 2015 Jun 05;25(2):141-51
pubmed: 26110027
Am J Surg Pathol. 2016 Feb;40(2):244-52
pubmed: 26492179
Can Urol Assoc J. 2016 Aug;10(7-8):264-268
pubmed: 27878049
Urology. 2017 Jul;105:123-128
pubmed: 28431993
Am J Surg Pathol. 1996 Dec;20(12):1501-6
pubmed: 8944043

Auteurs

Saro Aprikian (S)

Urologic Oncology Research Group, Cancer Research Program, Research Institute (RI) of McGill University Health Center (MUHC), Glen Campus, E M2.2210, 1001 Blvd Décarie, Montréal, Qc, H4A 3J1, Canada.

Murilo Luz (M)

Urologic Oncology Research Group, Cancer Research Program, Research Institute (RI) of McGill University Health Center (MUHC), Glen Campus, E M2.2210, 1001 Blvd Décarie, Montréal, Qc, H4A 3J1, Canada.
Department of Surgery (Urology Division), MUHC and McGill University, Montreal, Canada.

Fadi Brimo (F)

Urologic Oncology Research Group, Cancer Research Program, Research Institute (RI) of McGill University Health Center (MUHC), Glen Campus, E M2.2210, 1001 Blvd Décarie, Montréal, Qc, H4A 3J1, Canada.
Department of Pathology, MUHC and McGill University, Montreal, Canada.

Eleonora Scarlata (E)

Urologic Oncology Research Group, Cancer Research Program, Research Institute (RI) of McGill University Health Center (MUHC), Glen Campus, E M2.2210, 1001 Blvd Décarie, Montréal, Qc, H4A 3J1, Canada.

Lucie Hamel (L)

Urologic Oncology Research Group, Cancer Research Program, Research Institute (RI) of McGill University Health Center (MUHC), Glen Campus, E M2.2210, 1001 Blvd Décarie, Montréal, Qc, H4A 3J1, Canada.

Fabio L Cury (FL)

Urologic Oncology Research Group, Cancer Research Program, Research Institute (RI) of McGill University Health Center (MUHC), Glen Campus, E M2.2210, 1001 Blvd Décarie, Montréal, Qc, H4A 3J1, Canada.
Department of Radiation Oncology, MUHC and McGill University, Montreal, Canada.

Simon Tanguay (S)

Urologic Oncology Research Group, Cancer Research Program, Research Institute (RI) of McGill University Health Center (MUHC), Glen Campus, E M2.2210, 1001 Blvd Décarie, Montréal, Qc, H4A 3J1, Canada.
Department of Surgery (Urology Division), MUHC and McGill University, Montreal, Canada.
Department of Oncology, MUHC and McGill University, Montreal, Canada.

Armen G Aprikian (AG)

Urologic Oncology Research Group, Cancer Research Program, Research Institute (RI) of McGill University Health Center (MUHC), Glen Campus, E M2.2210, 1001 Blvd Décarie, Montréal, Qc, H4A 3J1, Canada.
Department of Surgery (Urology Division), MUHC and McGill University, Montreal, Canada.
Department of Oncology, MUHC and McGill University, Montreal, Canada.

Wassim Kassouf (W)

Urologic Oncology Research Group, Cancer Research Program, Research Institute (RI) of McGill University Health Center (MUHC), Glen Campus, E M2.2210, 1001 Blvd Décarie, Montréal, Qc, H4A 3J1, Canada.
Department of Surgery (Urology Division), MUHC and McGill University, Montreal, Canada.
Department of Oncology, MUHC and McGill University, Montreal, Canada.

Simone Chevalier (S)

Urologic Oncology Research Group, Cancer Research Program, Research Institute (RI) of McGill University Health Center (MUHC), Glen Campus, E M2.2210, 1001 Blvd Décarie, Montréal, Qc, H4A 3J1, Canada. simone.chevalier@mcgill.ca.
Department of Surgery (Urology Division), MUHC and McGill University, Montreal, Canada. simone.chevalier@mcgill.ca.
Department of Oncology, MUHC and McGill University, Montreal, Canada. simone.chevalier@mcgill.ca.
Department of Medicine, MUHC and McGill University, Montreal, Canada. simone.chevalier@mcgill.ca.
ORCID: 0000-0001-7009-0003

Articles similaires

[Redispensing of expensive oral anticancer medicines: a practical application].

Lisanne N van Merendonk, Kübra Akgöl, Bastiaan Nuijen
1.00
Humans Antineoplastic Agents Administration, Oral Drug Costs Counterfeit Drugs

Smoking Cessation and Incident Cardiovascular Disease.

Jun Hwan Cho, Seung Yong Shin, Hoseob Kim et al.
1.00
Humans Male Smoking Cessation Cardiovascular Diseases Female

Evaluation of Low-Value Services Across Major Medicare Advantage Insurers and Traditional Medicare.

Ciara Duggan, Adam L Beckman, Ishani Ganguli et al.
1.00
Humans United States Aged Cross-Sectional Studies Medicare Part C

Effectiveness of Virtual Yoga for Chronic Low Back Pain: A Randomized Clinical Trial.

Hallie Tankha, Devyn Gaskins, Amanda Shallcross et al.
1.00
Humans Yoga Low Back Pain Female Male

Classifications MeSH

questionsmedicales.fr › Personnes › Tranches d'âge › Adulte › Improving ultrasound-based prostate volume estimation.
questionsmedicales.fr › Personnes › Tranches d'âge › Adulte › Sujet âgé › Improving ultrasound-based prostate volume estimation.
questionsmedicales.fr › Eucaryotes › Animaux › Chordés › Vertébrés › Mammifères › Eutheria › Primates › Haplorhini › Catarrhini › Hominidae › Humains › Improving ultrasound-based prostate volume estimation.
questionsmedicales.fr › Personnes › Tranches d'âge › Adulte › Adulte d'âge moyen › Improving ultrasound-based prostate volume estimation.
questionsmedicales.fr › Phénomènes physiologiques › Croissance et développement › Croissance › Taille d'organe › Improving ultrasound-based prostate volume estimation.
questionsmedicales.fr › Environnement et santé publique › Santé publique › Méthodes épidémiologiques › Caractéristiques des études épidémiologiques › Études épidémiologiques › Études de cohortes › Études prospectives › Improving ultrasound-based prostate volume estimation.
questionsmedicales.fr › Tissus › Glandes exocrines › Prostate › Improving ultrasound-based prostate volume estimation.
questionsmedicales.fr › Procédures de chirurgie opératoire › Interventions chirurgicales mini-invasives › Échographie interventionnelle › Improving ultrasound-based prostate volume estimation.