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Falcinelli L, Menichelli C, Casamassima F, Aristei C, Borghesi S, Ingrosso G, Draghini L, Tagliagambe A, Badellino S, di Monale e Bastia MB. Stereotactic radiotherapy for lung oligometastases. Rep Pract Oncol Radiother 2022; 27:23-31. [PMID: 35402023 PMCID: PMC8989443 DOI: 10.5603/rpor.a2022.0002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 12/27/2021] [Indexed: 11/25/2022] Open
Abstract
30-60% of cancer patients develop lung metastases, mostly from primary tumors in the colon-rectum, lung, head and neck area, breast and kidney. Nowadays, stereotactic radiotherapy (SRT ) is considered the ideal modality for treating pulmonary metastases. When lung metastases are suspected, complete disease staging includes a total body computed tomography (CT ) and/or positron emission tomography-computed tomography (PET -CT ) scan. PET -CT has higher specificity and sensitivity than a CT scan when investigating mediastinal lymph nodes, diagnosing a solitary lung lesion and detecting distant metastases. For treatment planning, a multi-detector planning CT scan of the entire chest is usually performed, with or without intravenous contrast media or esophageal lumen opacification, especially when central lesions have to be irradiated. Respiratory management is recommended in lung SRT, taking the breath cycle into account in planning and delivery. For contouring, co-registration and/or matching planning CT and diagnostic images (as provided by contrast enhanced CT or PET-CT ) are useful, particularly for central tumors. Doses and fractionation schedules are heterogeneous, ranging from 33 to 60 Gy in 3-6 fractions. Independently of fractionation schedule, a BED10 > 100 Gy is recommended for high local control rates. Single fraction SRT (ranges 15-30 Gy) is occasionally administered, particularly for small lesions. SRT provides tumor control rates of up to 91% at 3 years, with limited toxicities. The present overview focuses on technical and clinical aspects related to treatment planning, dose constraints, outcome and toxicity of SRT for lung metastases.
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Affiliation(s)
- Lorenzo Falcinelli
- Radiation Oncology Section, University of Perugia and Perugia General Hospital, Italy
| | | | | | - Cynthia Aristei
- Radiation Oncology Section, University of Perugia and Perugia General Hospital, Italy
| | - Simona Borghesi
- Radiation Oncology Unit of Arezzo-Valdarno, Azienda USL Toscana Sud Est, Italy
| | - Gianluca Ingrosso
- Radiation Oncology Section, University of Perugia and Perugia General Hospital, Italy
| | | | | | - Serena Badellino
- Radiation Oncology Department, A.O.U. Città della Salute e della Scienza, Turin, Italy
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Eriguchi T, Takeda A, Sanuki N, Nishimura S, Takagawa Y, Enomoto T, Saeki N, Yashiro K, Mizuno T, Aoki Y, Oku Y, Yokosuka T, Shigematsu N. Stereotactic body radiotherapy for T3 and T4N0M0 non-small cell lung cancer. JOURNAL OF RADIATION RESEARCH 2016; 57:265-72. [PMID: 26983978 PMCID: PMC4915546 DOI: 10.1093/jrr/rrw023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 01/20/2016] [Accepted: 01/23/2016] [Indexed: 06/05/2023]
Abstract
To evaluate the outcomes and feasibility of stereotactic body radiotherapy (SBRT) for cT3 and cT4N0M0 non-small cell lung cancer (NSCLC), 25 patients with localized primary NSCLC diagnosed as cT3 or cT4N0M0, given SBRT between May 2005 and July 2013, were analyzed. All patients had inoperable tumors. The major reasons for tumors being unresectable were insufficient respiratory function for curative resection, advanced age (>80 years old) or technically inoperable due to invasion into critical organs. The median patient age was 79 years (range; 60-86). The median follow-up duration was 25 months (range: 5-100 months). The 2-year overall survival rates for T3 and T4 were 57% and 69%, respectively. The 2-year local control rates for T3 and T4 were 91% and 68%, respectively. As for toxicities, Grade 0-1, Grade 2 and Grade 3 radiation pneumonitis occurred in 23, 1 and 1 patient, respectively. No other acute or symptomatic late toxicities were reported. Thirteen patients who had no local, mediastinal or intrapulmonary progression at one year after SBRT underwent pulmonary function testing. The median variation in pre-SBRT and post-SBRT forced expiratory volume in 1 s (FEV1) values was -0.1 (-0.8-0.8). This variation was not statistically significant (P = 0.56). Forced vital capacity (FVC), vital capacity (VC), %VC and %FEV1 also showed no significant differences. SBRT for cT3 and cT4N0M0 NSCLC was both effective and feasible. Considering the favorable survival and low morbidity rate, SBRT is a potential treatment option for cT3 and cT4N0M0 NSCLC.
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Affiliation(s)
- Takahisa Eriguchi
- Radiation Oncology Center, Ofuna Chuo Hospital, 6-2-24 Ofuna, Kamakura-shi, Kanagawa 247-0056, Japan Department of Radiology, Keio University School of Medicine
| | - Atsuya Takeda
- Radiation Oncology Center, Ofuna Chuo Hospital, 6-2-24 Ofuna, Kamakura-shi, Kanagawa 247-0056, Japan
| | - Naoko Sanuki
- Radiation Oncology Center, Ofuna Chuo Hospital, 6-2-24 Ofuna, Kamakura-shi, Kanagawa 247-0056, Japan
| | - Shuichi Nishimura
- Radiation Oncology Center, Ofuna Chuo Hospital, 6-2-24 Ofuna, Kamakura-shi, Kanagawa 247-0056, Japan
| | - Yoshiaki Takagawa
- Radiation Oncology Center, Ofuna Chuo Hospital, 6-2-24 Ofuna, Kamakura-shi, Kanagawa 247-0056, Japan
| | - Tatsuji Enomoto
- Department of Respiratory Medicine, Ofuna Chuo Hospital, 6-2-24 Ofuna, Kamakura-shi, Kanagawa 247-0056, Japan
| | - Noriyuki Saeki
- Department of Thoracic Surgery, Ofuna Chuo Hospital, 6-2-24 Ofuna, Kamakura-shi, Kanagawa 247-0056, Japan
| | - Kae Yashiro
- Department of Radiology, Ofuna Chuo Hospital, 6-2-24 Ofuna, Kamakura-shi, Kanagawa 247-0056, Japan
| | - Tomikazu Mizuno
- Department of Radiology, Ofuna Chuo Hospital, 6-2-24 Ofuna, Kamakura-shi, Kanagawa 247-0056, Japan
| | - Yousuke Aoki
- Radiation Oncology Center, Ofuna Chuo Hospital, 6-2-24 Ofuna, Kamakura-shi, Kanagawa 247-0056, Japan
| | - Yohei Oku
- Radiation Oncology Center, Ofuna Chuo Hospital, 6-2-24 Ofuna, Kamakura-shi, Kanagawa 247-0056, Japan
| | - Tetsuya Yokosuka
- Department of Thoracic Surgery, Tokyo Metropolitan Hiroo Hospital
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Increasing Radiation Therapy Dose Is Associated With Improved Survival in Patients Undergoing Stereotactic Body Radiation Therapy for Stage I Non–Small-Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2015; 91:344-50. [DOI: 10.1016/j.ijrobp.2014.10.002] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/25/2014] [Accepted: 10/01/2014] [Indexed: 11/19/2022]
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Sahgal A, Ma L, Gibbs I, Gerszten PC, Ryu S, Soltys S, Weinberg V, Wong S, Chang E, Fowler J, Larson DA. Spinal Cord Tolerance for Stereotactic Body Radiotherapy. Int J Radiat Oncol Biol Phys 2010; 77:548-53. [PMID: 19765914 DOI: 10.1016/j.ijrobp.2009.05.023] [Citation(s) in RCA: 143] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2008] [Revised: 05/14/2009] [Accepted: 05/19/2009] [Indexed: 11/28/2022]
Affiliation(s)
- Arjun Sahgal
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Princess Margaret Hospital, University of Toronto, Toronto, Ontario, Canada.
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Predictors of local control after single-dose stereotactic image-guided intensity-modulated radiotherapy for extracranial metastases. Int J Radiat Oncol Biol Phys 2010; 79:1151-7. [PMID: 20510537 DOI: 10.1016/j.ijrobp.2009.12.038] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Revised: 12/04/2009] [Accepted: 12/04/2009] [Indexed: 12/13/2022]
Abstract
PURPOSE To report tumor local control after treatment with single-dose image-guided intensity-modulated radiotherapy (SD-IGRT) to extracranial metastatic sites. METHODS AND MATERIALS A total of 126 metastases in 103 patients were treated with SD-IGRT to prescription doses of 18-24 Gy (median, 24 Gy) between 2004 and 2007. RESULTS The overall actuarial local relapse-free survival (LRFS) rate was 64% at a median follow-up of 18 months (range, 2-45 months). The median time to failure was 9.6 months (range, 1-23 months). On univariate analysis, LRFS was significantly correlated with prescription dose (p = 0.029). Stratification by dose into high (23 to 24 Gy), intermediate (21 to 22 Gy), and low (18 to 20 Gy) dose levels revealed highly significant differences in LRFS between high (82%) and low doses (25%) (p < 0.0001). Overall, histology had no significant effect on LRFS (p = 0.16). Renal cell histology displayed a profound dose-response effect, with 80% LRFS at the high dose level (23 to 24 Gy) vs. 37% with low doses (≤22 Gy) (p = 0.04). However, for patients who received the high dose level, histology was not a statistically significant predictor of LRFS (p = 0.90). Target organ (bone vs. lymph node vs. soft tissues) (p = 0.5) and planning target volume size (p = 0.55) were not found to be associated with long-term LRFS probability. Multivariate Cox regression analysis confirmed prescription dose to be a significant predictor of LRFS (p = 0.003). CONCLUSION High-dose SD-IGRT is a noninvasive procedure resulting in high probability of local tumor control. Single-dose IGRT may be effectively used to locally control metastatic deposits regardless of histology and target organ, provided sufficiently high doses (> 22 Gy) of radiation are delivered.
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Sheehan JP, Shaffrey CI, Schlesinger D, Williams BJ, Arlet V, Larner J. Radiosurgery in the treatment of spinal metastases: tumor control, survival, and quality of life after helical tomotherapy. Neurosurgery 2010; 65:1052-61; discussion 1061-2. [PMID: 19934964 DOI: 10.1227/01.neu.0000359315.20268.73] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The effectiveness and limitations of spinal radiosurgery using a helical TomoTherapy system for the treatment of spinal metastases are reviewed in this article. METHODS This is a retrospective review of patients who underwent stereotactic radiosurgery for spinal metastases between July 2004 and December 2007. Radiographic follow-up consisted of magnetic resonance imaging to assess tumor growth control as well as pre- and posttreatment x-rays, which were used to measure changes in segmental angulation and deformity. Clinical performance was assessed using the Karnofsky Performance Scale, Oswestry Disability Index, and visual analog scale. RESULTS Forty patients were treated for 110 metastatic tumors (range, 1-6 tumors per patient). The mean age at the time of radiosurgical treatment was 67 years (age range, 35-81 years). Twenty-three patients (57.5%) had undergone previous surgical resection. Pain was the most common presenting symptom, seen in 32 patients (80%). The mean Oswestry Disability Index score at presentation was 43 (range, 20-90), and the mean visual analog scale score was 6.2 (range, 0-10). The mean radiosurgical dose to the tumor was 17.3 Gy (range, 10-24 Gy). At a mean follow-up duration of 12.7 months (range, 4-32 months), decreased or stable tumor volume was seen in 90 (82%) of the tumors treated. There was improvement in pain in 34 patients (85%). The mean postradiosurgical Oswestry Disability Index score was 25 (range, 10-90), whereas the postradiosurgical visual analog scale score was 3.2 (range, 0-9). Progression of kyphosis was the most common radiographic sequela, experienced by 73% of patients alive at 12 months, with a mean change in angulation of 7.3 +/- 4.5 degrees. CONCLUSION Radiosurgery is effective as either primary or adjunctive treatment of metastatic tumors of the spine.
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Affiliation(s)
- Jason P Sheehan
- Departments of Neurological Surgery and Radiation Oncology, University of Virginia Health Sciences Center, Charlottesville, Virginia 22908, USA.
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Estimation of Errors Associated With Use of Linear-Quadratic Formalism for Evaluation of Biologic Equivalence Between Single and Hypofractionated Radiation Doses: An In Vitro Study. Int J Radiat Oncol Biol Phys 2009; 75:482-8. [DOI: 10.1016/j.ijrobp.2008.12.093] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2008] [Revised: 12/15/2008] [Accepted: 12/19/2008] [Indexed: 12/25/2022]
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Masi L, Casamassima F, Menichelli C, Pasciuti K, Doro R, Polli C, D'imporzano E, Bonucci I. On-line image guidance for frameless stereotactic radiotherapy of lung malignancies by cone beam CT: comparison between target localization and alignment on bony anatomy. Acta Oncol 2009; 47:1422-31. [PMID: 18654905 DOI: 10.1080/02841860802251534] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Free-breathing stereotactic radiotherapy for lung malignancies requires reliable prediction of respiratory motion and accurate target localization. A protocol was adopted for reproducibility and reduction of respiratory motion and for target localization by CBCT image guidance. Tumor respiratory displacements and tumor positioning errors relative to bony anatomy alignment are analyzed. MATERIALS AND METHOD Image guided SRT was performed for 99 lung malignancies. Two groups of patients were considered: group A did not perform any breathing control; group B controlled visually their respiratory cycle and volumes on an Active Breathing Coordinator (ABC) monitor during the acquisition of simulation CT and CBCT, and treatment delivery. GTV on end inhale and exhale CT data sets were fused in an ITV and the extent of tumor motion evaluated between these 2 phases. A pre-treatment CBCT was acquired and aligned to the reference CT using bony anatomy; for tumor positioning the ITV contour on the reference CT was matched to the visible tumor on CBCT. Interobserver variability of tumor positioning was evaluated. ITV and CBCT tumor dimensions were compared. RESULTS 3D tumor breathing displacement (mean+/-SD) was significantly higher for group A (14.7+/-9.9 mm) than for group B (4.7+/-3.1 mm). The detected differences between tumor and bony structure alignment below 3 mm were 68% for group B and 45% for group A, reaching statistical significance. Interobserver variability was 1.7+/-1.1 mm (mean+/-SD). Dimensions of tumor image on CBCT were consistent with ITV dimensions for group B (max difference 14%). CONCLUSIONS The adopted protocol seems effective in reducing respiratory internal movements and margin. Tumor positioning errors relative to bony anatomy are also reduced. However bony anatomy as a surrogate of the target may still lead to some relevant positioning errors. Target visualization on CBCT is essential for an accurate localization in lung SRT.
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Guckenberger M, Wulf J, Mueller G, Krieger T, Baier K, Gabor M, Richter A, Wilbert J, Flentje M. Dose–Response Relationship for Image-Guided Stereotactic Body Radiotherapy of Pulmonary Tumors: Relevance of 4D Dose Calculation. Int J Radiat Oncol Biol Phys 2009; 74:47-54. [DOI: 10.1016/j.ijrobp.2008.06.1939] [Citation(s) in RCA: 132] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2008] [Revised: 06/11/2008] [Accepted: 06/12/2008] [Indexed: 12/14/2022]
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