Imaging of male urethra

Pavlica, Pietro; Barozzi, Libero; Menchi, Ilario

doi:10.1007/s00330-002-1758-7

Cited by 100 publications

(79 citation statements)

References 38 publications

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“…Although this technique does not require an experienced operator and is simpler than conventional radiology, it is relatively expensive and not available at all centers. MRI is a valuable technique for defining the length of prostatomembranous defect and distorted pelvic anatomy [7,8]. It can also be used to diagnose all cases of diverticula, tumors and fistula [9].…”

Section: Discussionmentioning

confidence: 99%

Flexible Cystoscope for Evaluating Pelvic Fracture Urethral Distraction Defects

Li¹,

Long²,

Xu³

et al. 2012

Urol Int

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Objective: To describe the value of flexible cystoscopy versus conventional urethrography (retrograde urethrography and cystourethrography) in diagnosing pelvic fracture urethral distraction defects (PFUDDs). Patients and Methods: Between May 2010 and June 2011, 120 male patients with PFUDDs were evaluated. In this study, all patients underwent conventional urethrography after admission. Flexible cystoscopy was also used for comparison, followed by conventional urethrography. The flexible cystoscope was introduced into the posterior urethra and the area was evaluated for the length of the proximal urethra and any possible fistulas, false passages, calculi or displacement of the posterior urethra. Results: Severe allergic reaction or obvious discomfort did not occur in any patients after conventional urethrography or flexible cystoscopy. By comparing the data obtained from flexible cystoscopy to those from conventional urethrography, no statistical difference was found in the measured length of the proximal posterior urethra (4.31 ± 2.28 vs. 4.02 ± 3.12, p > 0.05). However, the rate of detection in other abnormalities was higher in flexible cystoscopy than in conventional urethrography (48.3 vs. 10.8%, p < 0.05). Seventeen (14.2%), 9 (7.5%) and 32 (26.7%) patients were detected with fistula, false passage and calculus, respectively, according to flexible cystoscopy. In comparison, fistula, false passage and calculus were only observed in 2 (1.7%), 7 (5.8%) and 4 (3.3%) patients, respectively, through conventional urethrography imaging. Conclusions: Flexible cystoscopy is a valuable procedure in the evaluation of the posterior urethra and bladder neck, and in patients with urethral distraction defects before surgery. More details about fistulas, false passages, calculi and urethral defects could be obtained through this method.

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Section: Discussionmentioning

confidence: 99%

Flexible Cystoscope for Evaluating Pelvic Fracture Urethral Distraction Defects

Li¹,

Long²,

Xu³

et al. 2012

Urol Int

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“…For this purpose, we used the images provided by serial VCUG and retrograde urethrography. These explorations are considered the standard imaging techniques for the morphological and functional study of the urethra, and are the standard tests used for the diagnosis of UD [9]. …”

Section: Discussionmentioning

confidence: 99%

Study of the Prevalence and Interobserver Reproducibility of Radiologic Images Suggestive of Urethral Diverticula in Men with Spinal Cord Injury

Chamorro

Rubio²,

Florensa³

et al. 2013

Urol Int

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Objectives: To determine the prevalence of radiologic images suggestive of urethral diverticula (UD) in men with spinal cord injury (SCI) and to study the interobserver diagnostic reproducibility. Methods: Radiological studies (i.e. voiding cystourethrography and retrograde urethrography) performed over 1 year on men with SCI were independently reviewed by 3 researchers (1 urologist and 2 radiologists). Results: The prevalence of UD was found to be between 4.2 and 9.8% of the patients, the higher figure obtained when including also the doubtful images. The kappa index of agreement between the researchers was low (between 0.15 and 0.40). The factors that significantly influenced agreement were localization in the prostatic urethra (p = 0.021), localization in the penile urethra (p = 0.000) and fusiform morphology (p = 0.004). Logistic regression analysis showed that the variables that independently influenced diagnostic agreement were the following: localization in the penile urethra (in favor of agreement) and fusiform morphology (against agreement). Conclusions: Radiologic images suggestive of UD constitute a frequent finding in men with SCI and raise important diagnostic problems.

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“…One place where MRI may be useful is after pelvic trauma, where as well as delineating the urethral lumen it may demonstrate the anatomical abnormality and degree of prostatic displacement [54]; in particular, one report has suggested that it may be more accurate than conventional urethrography at determining the length of the obliterated segment [55], but it must be stressed that obtaining good urethral distension can be technically challenging. Periurethral enhancement correlates with inflammation but is as yet of uncertain clinical significance [56].…”

Section: Urethrographymentioning

confidence: 99%

MRI of the penis

Kirkham¹

2012

The British Journal of Radiology

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ABSTRACT. MRI of the penis is an expensive test that is not always superior to clinical examination or ultrasound. However, it shows many of the important structures, and in particular the combination of tumescence from intracavernosal alprostadil, and highresolution T 2 sequences show the glans, corpora and the tunica albuginea well. In this paper we summarise the radiological anatomy and discuss the indications for MRI. For penile cancer, it may be useful in cases where the local stage is not apparent clinically. In priapism, it is an emerging technique for assessing corporal viability, and in fracture it can in most cases make the diagnosis and locate the injury. In some cases of penile fibrosis and Peyronie's disease, it may aid surgical planning, and in complex pelvic fracture may replace or augment conventional urethrography. It is an excellent investigation for the malfunctioning penile prosthesis.

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Imaging of male urethra

Cited by 100 publications

References 38 publications

Flexible Cystoscope for Evaluating Pelvic Fracture Urethral Distraction Defects

Flexible Cystoscope for Evaluating Pelvic Fracture Urethral Distraction Defects

Study of the Prevalence and Interobserver Reproducibility of Radiologic Images Suggestive of Urethral Diverticula in Men with Spinal Cord Injury

MRI of the penis

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