title: [Radiotherapy of the breast after conservative surgery for primary carcinoma. Irradiation technic with matched fields].
abstract: The authors report their technique for breast radiotherapy following conservative surgery (quadrantectomy + axillary dissection). The breast and chest wall are irradiated with photons from a 60Co unit through two fixed opposing tangential fields. The posterior field edges must be parallel and coplanar to the chest wall. A routine treatment plan using simulator, pantograph and computerized console is standardized by mathematical formulae elaborated from geometric breast measurement parameters. Gammagraphies acquired prior to and during therapy allow verification and control of treatment parameters. For 35 patients the therapy plan as described was compared with that obtained by CT images. Our procedure proved valid and an accurate treatment plan could be elaborated even without CT images. The use of wedges, half-field blocks and the dose scattered to the contralateral breast are also discussed.
authors.affiliation: U.O. Radioterapia Oncologica, Ospedale Policlinico, Perugia.
authors.forename: P
authors.initials: P
authors.lastname: Latini
authors.forename: C
authors.initials: C
authors.lastname: Aristei
authors.forename: M P
authors.initials: MP
authors.lastname: Leogrande
authors.forename: C
authors.initials: C
authors.lastname: Raymondi
authors.forename: E
authors.initials: E
authors.lastname: Maranzano
authors.forename: F
authors.initials: F
authors.lastname: Checcaglini
authors.forename: B M
authors.initials: BM
authors.lastname: Panizza
authors.forename: E
authors.initials: E
authors.lastname: Perrucci
authors.forename: P
authors.initials: P
authors.lastname: Floridi
authors.forename: G
authors.initials: G
authors.lastname: Gobbi
mesh_terms: D001365:Axilla; D001943:Breast Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy* / Q000601:surgery; D003037:Cobalt Radioisotopes / Q000627:therapeutic use*; D003131:Combined Modality Therapy; D005260:Female; D006801:Humans; D008197:Lymph Node Excision; D011182:Postoperative Care; D011879:Radiotherapy Dosage; D011881:Radiotherapy, Computer-Assisted; D014057:Tomography, X-Ray Computed
chemical_list: D003037:Cobalt Radioisotopes
vernacular_title: La radioterapia della mammella dopo chirurgia conservativa per carcinoma iniziale. Tecnica di irradiazione con fasci collimati.