title: [Breast cancer adjuvant radiotherapy using active breathing control-moderate inspiration breath-hold - a case report].
abstract: BACKGROUND
  Chest movements during the breathing cycle represent a significant problem during radiotherapy of target volumes in the chest. There are several methods how to solve this problem.
  
  
  METHODS
  We have used Active breathing control-moderate inspiration breath-hold device in the case of adjuvant treatment of breast cancer.
  
  
  RESULTS
  Comparing the DVH (dose-volume histograms) without ABC the heart dose is V25 = 6,95% = 34 cm3, V30 = 5,36%, V45 = 1,71%, D mean 6,2 Gy, however in the case of using ABC device V25 = 1,96% = 8,77 cm3, V30 = 1,26%, V45 = 0%, D mean = 2,58 Gy. The dose delivered to left lung was in the first case V20 = 31,2%, D mean = 15,9 Gy and with ABC device V20 = 26,99% a D mean 13,6 Gy. Doses deliver to right lung, cord and target volume coverage were similar in both situations.
  
  
  CONCLUSIONS
  According to our experience ABC device represents simple technique how to solve problems with chest movements during radiotherapy.
authors.affiliation: Onkologicka klinika LF UP v Olomouci, Olomouc. davvrana@gmail.com
authors.forename: D
authors.initials: D
authors.lastname: Vrána
authors.forename: K
authors.initials: K
authors.lastname: Cwiertka
authors.forename: L
authors.initials: L
authors.lastname: Lukešová
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000532:radiotherapy*; D062485:Breath Holding; D005260:Female; D006801:Humans; D011879:Radiotherapy Dosage; D018714:Radiotherapy, Adjuvant / Q000379:methods