An analytical model for the upper bound estimation of respiratory motion–induced dose uncertainty in spot‐scanning proton beam therapy

2019 ◽  
Vol 46 (11) ◽  
pp. 5249-5261
Author(s):  
Heng Li ◽  
Xiaodong Zhang ◽  
Yupeng Li ◽  
Ronald X. Zhu
PLoS ONE ◽  
2014 ◽  
Vol 9 (4) ◽  
pp. e94971 ◽  
Author(s):  
Shinichi Shimizu ◽  
Naoki Miyamoto ◽  
Taeko Matsuura ◽  
Yusuke Fujii ◽  
Masumi Umezawa ◽  
...  

Rare Tumors ◽  
2019 ◽  
Vol 11 ◽  
pp. 203636131987851 ◽  
Author(s):  
Nathan Y Yu ◽  
Sujay A Vora

Retroperitoneal chordomas are exceedingly rare and account for less than 5% of all primary bone malignancies. Their etiology remains unknown. We report a rare case of an extravertebral chordoma of the retroperitoneum in a 71-year-old man treated with surgical resection and post-operative spot-scanning proton beam therapy. We describe how to safely treat a retroperitoneal target to a prescription dose over 70 Gy (relative biological effectiveness) with spot-scanning proton beam therapy and also report a dosimetric comparison of spot-scanning proton beam therapy versus intensity-modulated radiation therapy. This case not only highlights a rare diagnosis of an extravertebral retroperitoneal chordoma but it also draws attention to the dosimetric advantages of proton beam therapy and illustrates a promising radiotherapeutic option for retroperitoneal targets.


2015 ◽  
Vol 42 (6Part19) ◽  
pp. 3435-3435
Author(s):  
H Hamano ◽  
N Hayashi ◽  
T Yamakawa ◽  
K Yasui ◽  
H Kato

2015 ◽  
Vol 42 (6Part43) ◽  
pp. 3728-3728
Author(s):  
K Umegaki ◽  
T Matsuura ◽  
S Takao ◽  
Y Matsuzaki ◽  
T Yamada ◽  
...  

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