Early Clinical Experience and Outcome of Helical Tomotherapy for Multiple Metastatic Lesions

Ik Jae Lee, Jinsil Seong, Chang Geol Lee, Yong Bae Kim, Ki Chang Keum, Chang Ok Suh, Gwi Eon Kim, Jaeho Cho

Research output: Contribution to journalArticle

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Abstract

Purpose: To evaluate the feasibility of synchronous treatment of multiple metastatic lesions by helical tomotherapy. Methods and Materials: Forty-two patients with multiple metastatic lesions were treated by helical tomotherapy from April 2006 to February 2007. Among these patients, 21 had metastatic bone disease. Subjective pain response was assessed using the visual analogue scales, and morbidity was evaluated by Common Terminology Criteria for Adverse Events v3.0. The correlation between the percentage of red bone marrow in the radiation field and the severity of leukocytopenia was analyzed. Results: The median age was 57 years. Radiation dose to the gross tumor volume was 30-84 Gy, with a median fractional size of 3 Gy. Mean treatment time was 16 min and 1 sec. Treatment time and fraction size were modified because of poor performance status or hematologic toxicity in two patients. With regard to palliative effects for bone metastasis, 16 patients (76.2%) experienced positive pain relief. Four patients had Grade III leukocytopenia, and three had Grade IV leukocytopenia. In the multivariate logistic regression, red marrow percentage was the independent risk factor most associated with Grade III/IV leukocytopenia (p = 0.014). The tolerance cutoff point of red bone marrow was 26.8%, with a sensitivity and specificity of 85.7% and 85.7%, respectively. Conclusions: Helical tomotherapy was effective for symptom palliation and was feasible for patients with multiple metastatic diseases. The volume of red bone marrow, as well as performance status, must be taken into account to determine optimal treatment.

Original languageEnglish
Pages (from-to)1517-1524
Number of pages8
JournalInternational Journal of Radiation Oncology Biology Physics
Volume73
Issue number5
DOIs
Publication statusPublished - 2009 Apr 1

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Intensity-Modulated Radiotherapy
lesions
Bone Marrow
Leukopenia
bone marrow
grade
pain
bones
terminology
Radiation
Pain
logistics
metastasis
Bone Diseases
toxicity
radiation distribution
Therapeutics
Tumor Burden
regression analysis
Visual Analog Scale

All Science Journal Classification (ASJC) codes

  • Radiation
  • Oncology
  • Radiology Nuclear Medicine and imaging
  • Cancer Research

Cite this

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title = "Early Clinical Experience and Outcome of Helical Tomotherapy for Multiple Metastatic Lesions",
abstract = "Purpose: To evaluate the feasibility of synchronous treatment of multiple metastatic lesions by helical tomotherapy. Methods and Materials: Forty-two patients with multiple metastatic lesions were treated by helical tomotherapy from April 2006 to February 2007. Among these patients, 21 had metastatic bone disease. Subjective pain response was assessed using the visual analogue scales, and morbidity was evaluated by Common Terminology Criteria for Adverse Events v3.0. The correlation between the percentage of red bone marrow in the radiation field and the severity of leukocytopenia was analyzed. Results: The median age was 57 years. Radiation dose to the gross tumor volume was 30-84 Gy, with a median fractional size of 3 Gy. Mean treatment time was 16 min and 1 sec. Treatment time and fraction size were modified because of poor performance status or hematologic toxicity in two patients. With regard to palliative effects for bone metastasis, 16 patients (76.2{\%}) experienced positive pain relief. Four patients had Grade III leukocytopenia, and three had Grade IV leukocytopenia. In the multivariate logistic regression, red marrow percentage was the independent risk factor most associated with Grade III/IV leukocytopenia (p = 0.014). The tolerance cutoff point of red bone marrow was 26.8{\%}, with a sensitivity and specificity of 85.7{\%} and 85.7{\%}, respectively. Conclusions: Helical tomotherapy was effective for symptom palliation and was feasible for patients with multiple metastatic diseases. The volume of red bone marrow, as well as performance status, must be taken into account to determine optimal treatment.",
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Early Clinical Experience and Outcome of Helical Tomotherapy for Multiple Metastatic Lesions. / Lee, Ik Jae; Seong, Jinsil; Lee, Chang Geol; Kim, Yong Bae; Keum, Ki Chang; Suh, Chang Ok; Kim, Gwi Eon; Cho, Jaeho.

In: International Journal of Radiation Oncology Biology Physics, Vol. 73, No. 5, 01.04.2009, p. 1517-1524.

Research output: Contribution to journalArticle

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AU - Seong, Jinsil

AU - Lee, Chang Geol

AU - Kim, Yong Bae

AU - Keum, Ki Chang

AU - Suh, Chang Ok

AU - Kim, Gwi Eon

AU - Cho, Jaeho

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