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Archivos Españoles de Urología (Ed. impresa)

versión impresa ISSN 0004-0614


ARIAS FUNEZ, Fernando; ESCUDERO BARRILERO, Ángel; RODRIGUEZ-PATRON RODRIGUEZ, Rafael  y  VALLEJO OCANA, Carmen. The role of transrectal ultrasound on prostatic cryotherapy and brachytherapy. Arch. Esp. Urol. [online]. 2006, vol.59, n.4, pp.415-430. ISSN 0004-0614.

Objectives: Transrectal ultrasound is the method that gives a direct image of the prostate, its limits, structural and morphologic anomalies, and anatomical relations. Therefore, prostate volume is easily determined, being the first step for the application of certain therapeutic procedures. Prostatic cryotherapy and brachytherapy have been developed over the last years as minimally invasive options for the treatment of prostate cancer. Transrectal ultrasound of the prostate has allowed the application of these technologies in the daily practice, guaranteeing high efficacy and safety indexes. Cryosurgery is the controlled freezing of tissues. Prostatic transrectal ultrasound is the only method able to show the real-time evolution of prostatic cryoablation, allowing the urologist to control the evolution of the ice ball and to reach the targeted anatomical structures guaranteeing the oncological objectives, and diminishing complications and sequels. Brachytherapy, as a local intraprostatic radiotherapy, needs exact volume and dose calculations before the implant of the radioactive source within the gland. With transrectal ultrasound of the prostate, ultrasound-tomographic cuts are made for prostatic volume calculation and planimetry. Once dosimetry is completed, real-time transrectal ultrasound control is necessary to perform the implant of the needles loaded with the seeds. Today, prostate cryotherapy and brachytherapy would be inconceivable without transrectal ultrasound.

Palabras clave : Transrectal ultrasound; Cryotherapy; Brachytherapy; Urological ultrasound.

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