Inverse planning -: a comparative intersystem and interpatient constraint study

被引：21

作者：

Georg, Dietmar ^{[1
]}

Kroupa, Bernhard ^{[1
]}

Georg, Petra ^{[1
]}

Winkler, Peter ^{[1
]}

Bogner, Joachim ^{[1
]}

Dieckmann, Karin ^{[1
]}

Poetter, Richard ^{[1
]}

机构：

[1] Med Univ Vienna, Dept Radiotherapy & Radiobiol, Div Med Radiat Phys, AKH Vienna, A-1090 Vienna, Austria

来源：

STRAHLENTHERAPIE UND ONKOLOGIE | 2006年 / 182卷 / 08期

关键词：

IMRT; inverse planning; dose constraints; dose-volume constraints;

D O I：

10.1007/s00066-006-1531-y

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

Purpose: To compare commercial treatment-planning systems (TPS) for inverse planning (IP) and to assess constraint variations for specific IMRT indications. Material and Methods: For IF, OTP, XiO and BrainSCAN were used and step-and-shoot intensity-modulated radiotherapy (IMRT) delivery was assumed. Based on identical constraints, IP was performed for a prostate, head and neck, brain, and gynecologic case. IMRT plans were compared in terms of conformity/homogeneity, dose-volume histograms (DVHs), and delivery efficiency. For ten patients each of a class of indications, constraint variations were evaluated. Results: IMRT plans were comparable concerning minimum target dose, homogeneity, conformity, and maximum doses to organs at risk. Larger differences were seen in dose gradients outside the target, monitor units, and segment number. Using help structures proved efficient to shape isodoses and to reduce segmentation workload. For IMRT class solutions, IP constraint variations depended on anatomic site. Conclusion: IP systems requiring doses as input and having objective functions based on physical parameters had a very similar performance. Constraint templates can be established for a class of IMRT indications.

引用

页码：473 / 480

页数：8

共 24 条

[1]

Bogner L, 2004, STRAHLENTHER ONKOL, V180, P340, DOI 10.1007/s00066-004-1219-0

[2] Intensity-modulated radiotherapy: Current status and issues of interest [J].

Boyer, AL ;

Butler, EB ;

DiPetrillo, TA ;

Engler, MJ ;

Fraass, B ;

Grant, W ;

Ling, CC ;

Low, DA ;

Mackie, TR ;

Mohan, R ;

Purdy, JA ;

Roach, M ;

Rosenman, JG ;

Verhey, LJ ;

Wong, JW ;

Cumberlin, RL ;

Stone, H ;

Palta, JR .

INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, 2001, 51 (04) :880-914

[3]

Cavey ML, 2005, STRAHLENTHER ONKOL, V181, P431, DOI 10.1007/s00066-005-1384-9

[4]

CHAO C, 2002, INTENSITY MODULATED

[5] Patterns of failure in patients receiving definitive and postoperative IMRT for head-and-neck cancer [J].

Chao, KSC ;

Ozyigit, G ;

Tran, BN ;

Cengiz, M ;

Dempsey, JF ;

Low, DA .

INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, 2003, 55 (02) :312-321

[6] The generalized equivalent uniform dose function as a basis for intensity-modulated treatment planning [J].

Choi, B ;

Deasy, J .

PHYSICS IN MEDICINE AND BIOLOGY, 2002, 47 (20) :3579-3589

[7] Report of a study on IMRT planning strategies for ethmoid sinus cancer [J].

Claus, F ;

Mijnheer, B ;

Rasch, C ;

Bortfeld, T ;

Fraass, B ;

De Gersem, W ;

Wirtz, H ;

Hoinkis, C ;

Cho, BC ;

Kwong, LWD ;

Bae, H ;

Muller, K ;

De Neve, W .

STRAHLENTHERAPIE UND ONKOLOGIE, 2002, 178 (10) :572-576

[8] Commissioning of a micro multi-leaf collimator and planning system for stereotactic radiosurgery [J].

Cosgrove, VP ;

Jahn, U ;

Pfaender, M ;

Bauer, S ;

Budach, V ;

Wurm, RE .

RADIOTHERAPY AND ONCOLOGY, 1999, 50 (03) :325-336

[9]

De Meerleer G, 2004, STRAHLENTHER ONKOL, V180, P136, DOI 10.1007/s00066-004-1209-2

[10] Salivary gland sparing and improved target irradiation by conformal and intensity modulated irradiation of head and neck cancer [J].

Eisbruch, A ;

Ship, JA ;

Dawson, LA ;

Kim, HM ;

Bradford, CR ;

Terrell, JE ;

Chepeha, DB ;

Teknos, TN ;

Hogikyan, ND ;

Anzai, Y ;

Marsh, LH ;

Ten Haken, RK ;

Wolf, GT .

WORLD JOURNAL OF SURGERY, 2003, 27 (07) :832-837

← 1 2 3 →