Ecografie — Vezică urinară (MCB)

URINARY BLADDER US PROTOCOL

PURPOSE:

 To evaluate the volume of the bladder and assess for any pathology.

INDICATIONS:

 Evaluation of urinary tract infection or urinary incontinence/retention.  Determination of bladder volumes.  Pelvic pain or signs/symptoms referable to these areas (e.g. hematuria).  Palpable abnormalities.  Abnormal laboratory values or abnormal findings on other imaging examinations.  Follow-up of known or suspected abnormalities.  Evaluation of suspected congenital abnormalities.  Pelvic trauma.

EQUIPMENT:

 3-5 MHz linear or curved probe

PATIENT PREPARATION & ASSESSMENT:

 Introduce yourself to the patient.
 Verify patient identity via two patient identifiers (name and date of birth) per hospital policy.  Explain the examination, its purpose and how long it will take.  Answer any questions the patient may have regarding the examination.  Obtain patient history including symptoms, signs, risk factors and other relevant history.

GENERAL GUIDELINES:

 Send the measurements screenshot page if your machine is capable.  For focal lesions (masses, cysts, nodules, lymph nodes, fibroids) obtain split-screen images of the lesion without calibers, with calibers and with Color Doppler.
 Any deviations from the standard protocol and any limitations to the examination should be documented on the technologist worksheet for future reference and for repeatability in follow-up studies.  Report preliminary critical findings to the referring clinician when appropriate (i.e. immediate medical attention may be warranted) and according to hospital policy.

Bladder Protocol – Last Updated 3/31/2024 - Page 1 of 2

DOCUMENTATION:

Bladder  Obtain longitudinal and transverse grayscale images throughout the bladder.  Obtain grayscale image measuring bladder wall at its thickest point.  Normal wall thickness is <3 mm when distended or <5 mm when nondistended.  Obtain select longitudinal and transverse color Doppler images throughout the bladder.  Note ureteral jets if they are seen during the exam.  Calculate pre-void and post-void bladder volumes.  Normal volume of a distended bladder is 300-400 mL.  Normal post-void residual is <50 mL (<50-100 mL in elderly patients).  Note any stone, mass or diverticulum.  For non-stone pathology (mass-like debris, masses, nodules) obtain color and spectral Doppler images of the pathology. Debris will not have blood flow. Masses will have blood flow.

Prostate  Measure the prostate dimensions in male patients.  Normal dimensions are 2.1-3.4 cm AP, 3.9-5.3 cm TR and 2-4 cm CC.  Normal volume is <40 mL (formula volume = AP x TR x CC x 0.52).  Obtain transverse color Doppler image of the prostate.

Bladder Protocol – Last Updated 3/31/2024 - Page 2 of 2