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Measurement of the distance between the prostate and the rectum by an injected spacer

TN Tsukasa Narukawa
NA Norihiro Aibe
MT Masashi Tsujimoto
TS Takumi Shiraishi
TK Takuya Kimoto
GS Gen Suzuki
TU Takashi Ueda
AF Atsuko Fujihara
HY Hideya Yamazaki
OU Osamu Ukimura
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The distance between the prostate and the rectum expanded by the injected spacer was evaluated using the T2-weighted image of postoperative MRI obtained before PBT introduction, and the hydrogel was recognized as a hyperintense signal. In particular, the distance at the prostate-apex level was measured using the axial T2-weighted image of the MRI21, whereas that at the prostate-mid and prostate-base levels was measured using the midsagittal T2-weighted image slice of the MRI (Supplementary Fig. 2). The rectal wall infiltration of spacer (RWI) was also evaluated by using the axial T2-weighted image of MRI.

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