title: [Radiation planning in breast cancer. What is the depth of the internal mammary lymph nodes?].
abstract: For irradiation of the parasternal lymph nodes by high-energy electrons the target volume depth, i.e. the depth of the parasternal nodes below the skin surface, was determined by CT in 25 consecutive female patients with a sternal irradiation field. On measurement at the cranial end of the sternum, at a middle level, and at the caudal part of the sternal field, intraindividual differences were low, whereas interindividual findings differed markedly--depending on thickness of subcutaneous fatty tissue. For individual treatment planning, we recommend measuring target volume depth by CT.
mesh_terms: D001943:Breast Neoplasms / Q000532:radiotherapy*; D005260:Female; D006801:Humans; D008198:Lymph Nodes / Q000000981:diagnostic imaging*; D011880:Radiotherapy Planning, Computer-Assisted; D011881:Radiotherapy, Computer-Assisted; D014057:Tomography, X-Ray Computed
vernacular_title: Bestrahlungsplanung des Mammakarzinoms. Wie tief liegen die Mammaria-Interna-Lymphknoten?