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Correction to: Preliminary result of carbon-ion radiotherapy using the spot scanning method for prostate cancer

The Original Article was published on 27 May 2020

Correction to: Radiation Oncology (2020) 15:127 https://doi.org/10.1186/s13014-020-01575-7

Following publication of the original article [1], the authors identified minor errors that should be addressed.

In the Abstract, the original publication read (affected area marked in bold):

Grade 2 acute rectal toxicity was not observed. Grade 2 late urinary toxicity and grade 2 late rectal toxicity were observed in 17 (6.7%) and 3 patients (1.2%), respectively.

The corrected sentence reads:

Grade 2 acute rectal toxicity was not observed. Grade 2 late urinary toxicity and grade 2 late rectal toxicity were observed in 16 (6.3%) and 3 patients (1.2%), respectively.

In Table 1, Row 1, the Follow-up duration, months, median (range) originally read 24.3 (4.1–39.5). The corrected reading is 35.3 (4.1–52.9).

The corrected Table 1 is given here.

Table 1 Patient characteristics (n = 253)

In Results, Toxicities, the original publication read (affected area marked in bold):

Grades 1 and 2 urinary frequency were observed in 36 (14.8%) and 12 (4.7%) patients, respectively.

The corrected sentence reads:

Grades 1 and 2 urinary frequency were observed in 34 (13.4%) and 9 (3.6%) patients, respectively.

In Results, Toxicities, the original publication read (affected areas marked in bold):

The late GU toxicity grades were one in 52 patients (20.6%) and two in 17 patients (6.7%). Grade 3 or greater late GU toxicity was not observed. Among the late GU toxicities, grades 1 and 2 hematuria were observed in 14 (5.5%) and one patient (0.4%), respectively. Grades 1 and 2 urinary frequency were observed in 28 (11.1%) and 11 (4.3%) patients, respectively, and grades 1 and 2 urinary stricture were observed in 5 (2.0%) and 3 (1.2%) patients, respectively.

The corrected sentences read:

The late GU toxicity grades were one in 52 patients (20.6%) and two in 16 patients (6.3%). Grade 3 or greater late GU toxicity was not observed. Among the late GU toxicities, grades 1 and 2 hematuria were observed in 14 (5.5%) and one patient (0.4%), respectively. Grades 1 and 2 urinary frequency were observed in 26 (10.3%) and 11 (4.3%) patients, respectively, and grades 1 and 2 urinary stricture were observed in 5 (2.0%) and 3 (1.2%) patients, respectively.

In the Discussion, an incorrect reference number was used; [37] has been replaced by the correct [36] in the following sentence:

"More than 80% of late toxicities occurred within 2 years after CIRT [36];..."

The correction does not have any effect on the final conclusions of the paper. The original article has been corrected.

References

  1. Takakusagi Y, Katoh H, Kano K, et al. Preliminary result of carbon-ion radiotherapy using the spot scanning method for prostate cancer. Radiat Oncol. 2020;15:127. https://doi.org/10.1186/s13014-020-01575-7.

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Correspondence to Hiroyuki Katoh.

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Takakusagi, Y., Katoh, H., Kano, K. et al. Correction to: Preliminary result of carbon-ion radiotherapy using the spot scanning method for prostate cancer. Radiat Oncol 17, 101 (2022). https://doi.org/10.1186/s13014-022-02032-3

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  • DOI: https://doi.org/10.1186/s13014-022-02032-3