Ultrasonographic Features of Paraprostatic Cysts in Nine Dogs

Stowater, J L; Lamb, Christopher R.

doi:10.1111/j.1740-8261.1989.tb00780.x

Cited by 34 publications

(20 citation statements)

References 8 publications

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“…Several studies evaluated the age-related changes of the prostate in dogs [19–21], but CT-changes in prostate texture have not been discussed corresponding to the dog’s age.…”

Section: Discussionmentioning

confidence: 99%

Computed tomography: a beneficial diagnostic tool for the evaluation of the canine prostate?

et al. 2017

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BackgroundProstatic diseases in intact male dogs are common. However, studies about the computed tomographic (CT) examination of the prostate in dogs are rare. The aim of the present study was to evaluate age related-changes in the canine prostate with the help of the CT and to evaluate whether measuring Hounsfield Units (HUs) in different morphological conditions of the prostate is of diagnostic value.Fifty pre- and post-contrast CT scans of the prostate of dogs were evaluated and divided into three groups according to the tissue structure: Group1 dogs with homogenous prostate tissue (16/50); group 2 with prostate cysts (26/50) and group 3 with inhomogeneous prostate tissue (8/50). The prostatic dimensions were measured and the ratio between length, height and width and the sixth lumbar vertebra was calculated. Median values of prostatic attenuation measured in HUs, using regions of interests (ROIs) were determined on pre- and post- contrast scans over the whole length of the prostate. The results were compared to the dog’s age.Furthermore, the CT Images were compared with the results of ultrasonography (47/50).ResultsOn pre-contrast scans HUs within ROIs placed in the prostate did not differ statistically significantly between the different morphological groups (1: 37.7; 2: 36.3; 3: 39.8 HU). HUs within on the post- contrast scans showed statistically significant differences between the groups. Group one had a mean density of 93.6 HU, group two had a mean density of 106.1 HU and group three had one of 138.2 HU. The prostatic size in the first group was smaller than in the other groups, whereas the largest prostates were found in the second group.In six cases the post-contrast CT scan showed results that differed from the ultrasound examination. Dogs had a homogenous tissue in ultrasonography while the CT scan revealed an inhomogeneous tissue structure.ConclusionsThe CT examination can be a beneficial diagnostic tool for examining the prostatic size and for evaluating the prostatic tissue. The different HUs reflected age-related changes and alterations in the prostate while measuring the density of the prostate. Contrast agent application enables a more specific analysis of the prostate to be carried out and for precise changes in tissue structure to be observed.

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“…Several studies evaluated the age-related changes of the prostate in dogs [19–21], but CT-changes in prostate texture have not been discussed corresponding to the dog’s age.…”

Section: Discussionmentioning

confidence: 99%

Computed tomography: a beneficial diagnostic tool for the evaluation of the canine prostate?

et al. 2017

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show abstract

“…58,59 The ultrasound evaluation of paraprostatic cysts typically reveals an anechoic, fluid-filled structure (see Figure 17-28, C). 58,59 The ultrasound evaluation of paraprostatic cysts typically reveals an anechoic, fluid-filled structure (see Figure 17-28, C).…”

Section: Paraprostatic Cystsmentioning

confidence: 99%

Prostate and Testes

Mattoon¹,

Nyland²

2015

Small Animal Diagnostic Ultrasound

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“…Conventional two‐dimensional ultrasonography has become increasingly important in the diagnosis of reproductive disorders in the male dog (Cartee and Rowles 1983; Feeney et al. 1985, 1989; Stowater and Lamb 1989; England 1991; Johnston et al. 1991a,b; Cooney et al.…”

Section: Introductionmentioning

confidence: 99%

Colour‐coded and Pulsed Doppler Sonography of the Canine Testis, Epididymis and Prostate Gland: Physiological and Pathological Findings

Günzel‐Apel¹,

Möhrke²,

Nautrup³

2001

Reprod Domestic Animals

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Two-dimensional ultrasound was used in combination with colour-coded and pulsed Doppler sonography to study the blood flow of the testes and prostate gland in a total of 30 male dogs. After detection of the vessels by colour-coded Doppler sonography, the blood flow patterns were determined by pulsed Doppler sonography measuring and describing the systolic and diastolic peak velocity (SPV, DPV), the end-diastolic velocity, the time-averaged maximum velocity (TAMAX), the pulsatility and resistance index, as well as the ratios of the systolic peak velocity and end-diastolic velocity and of the systolic and diastolic peak velocities. The blood flow of the testicular artery was measured within the pampiniform plexus and the marginal location. The prostatic blood supply was measured in the artery of the deferential duct (cranial), the prostatic artery outside (lateral) and within the gland (subcapsular). The physiological testicular flow pattern was monophasic with a high diastolic flow. Testes with neoplastic alterations showed a significant increase of SPV and TAMAX. The epididymal vessels could not be detected. Under physiological conditions the prostatic blood flow pattern was biphasic in the cranial and lateral location and monophasic in the subcapsular location. Benign prostatic hyperplasia was characterized by a significant increase of SPV, DPV and TAMAX. The results of the present investigation demonstrate that the colour-coded and pulsed Doppler sonography give additional valuable information which improves the andrological diagnostics in the dog.

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Ultrasonographic Features of Paraprostatic Cysts in Nine Dogs

Cited by 34 publications

References 8 publications

Computed tomography: a beneficial diagnostic tool for the evaluation of the canine prostate?

Computed tomography: a beneficial diagnostic tool for the evaluation of the canine prostate?

Prostate and Testes

Colour‐coded and Pulsed Doppler Sonography of the Canine Testis, Epididymis and Prostate Gland: Physiological and Pathological Findings

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