title: Dose effects of seeds placement deviations from pre-planned positions in ultrasound guided prostate implants.
abstract: The effects of random (drifting) errors in actual seed placement during prostate implants have been evaluated by using geometrically optimized implants of I-125 and Pd-103 seeds. Results indicate that small random deviations in the seeds placement from the preplant position may affect the planned dose and beam profiles significantly.
authors: Radiation Oncology Department, Saint Louis University Health Sciences Center, MO 63110-0250.
authors: J E
authors: JE
authors: Dawson
authors: T
authors: T
authors: Wu
authors: T
authors: T
authors: Roy
authors: J Y
authors: JY
authors: Gu
authors: H
authors: H
authors: Kim
mesh_terms: D001918:Brachytherapy / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D007457:Iodine Radioisotopes / Q000627:therapeutic use; D008297:Male; D010165:Palladium / Q000627:therapeutic use; D011467:Prostate / Q000000981:diagnostic imaging*; D011471:Prostatic Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy*; D011868:Radioisotopes / Q000627:therapeutic use; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted; D012984:Software; D018084:Ultrasonography, Interventional
chemical_list: D007457:Iodine Radioisotopes; D011868:Radioisotopes; D010165:Palladium