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Kroeze S, Fritz C, Kaul D, Blanck O, Kahl K, Roeder F, Siva S, Verhoeff J, Grosu A, Schymalla M, Glatzer M, Szuecs M, Geier M, Skazikis G, Sackerer I, Lohaus F, Eckert F, Guckenberger M. Stereotactic radiotherapy concurrent to immune or targeted therapy for oligometastatic NSCLC: Clinical scenarios affecting survival. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz063.071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Correa R, Siva S, Staehler M, Warner A, Gandhidasan S, Ponsky L, Ellis R, Kaplan I, Mahadevan A, Chu W, Swaminath A, Onishi H, Teh B, Lo S, Muacevic A, Louie A. Renal SABR in Patients with a Solitary Kidney: An Individual-Patient Pooled Analysis from the International Radiosurgery Oncology Consortium for Kidney (IROCK). Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.06.275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Anton A, Ballok Z, Bowden P, Costello T, Harewood L, Corcoran N, Dundee P, Peters J, Lawrentschuk N, Troy A, Webb D, Chan Y, See A, Siva S, Murphy D, Hofman M, Tran B. Using PSMA PET/CT to assess response in metastatic prostate cancer (mPC) patients (pts) receiving upfront chemohormonal therapy. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy434.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Gill S, Gandhidasan S, Kron T, Ball D, Shaw M, Chander S, Bressel M, Chesson B, David S, Siva S. Ablation of oligometastasis cancer with stereotactic ablative body radiotherapy exploiting the stepwise theory of metastasis: A retrospective review of a single institution series. Respir Med 2017. [DOI: 10.1016/j.rmed.2017.07.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Thomas R, Turgeon G, Hofman M, Callahan J, Anderson N, Hardcastle N, Kron T, Bressel M, Steinfort D, Shaw M, Plumridge N, Macmanus M, Hicks R, Ball D, Siva S. P2.14-001 Mid-Treatment Perfusion PET/CT Is More Effective Than Ventilation PET/CT in Functionally-Adapted Radiotherapy for NSCLC. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Siva S, Muacevic A, Staehler M, Warner A, Gandhidasan S, Ponsky L, Ellis R, Kaplan I, Mahadevan A, Chu W, Onishi H, Lo S, Teh B, Swaminath A, Correa R, Louie A. Individual Patient Data Meta-analysis of SBRT Kidney: A Report From the International Radiosurgery Oncology Consortium for Kidney (IROCK). Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Chang J, Gandhidasan S, Finnigan R, Whalley D, Nair R, Herschtal A, Eade T, Kneebone A, Ruben J, Foote M, Siva S. Stereotactic Ablative Body Radiotherapy for the Treatment of Spinal Oligometastases. Clin Oncol (R Coll Radiol) 2017; 29:e119-e125. [DOI: 10.1016/j.clon.2017.02.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 01/06/2017] [Accepted: 01/31/2017] [Indexed: 11/30/2022]
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Siva S, Kothai Nayaki S, Rajendiran N. Spectral and molecular modeling investigations of supramolecular complexes of mefenamic acid and aceclofenac with α- and β-cyclodextrin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 174:349-362. [PMID: 29941144 DOI: 10.1016/j.saa.2014.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 11/28/2014] [Accepted: 12/01/2014] [Indexed: 06/08/2023]
Abstract
Inclusion complexes of mefenamic acid (MFA) and aceclofenac (ALF) with α- and β-cyclodextrins (CDs) in aqueous medium were investigated by absorption, fluorescence, time-resolved fluorescence methods. The solid inclusion complexes between drugs and CDs were characterized by SEM, TEM, FT-IR, 1H NMR, DSC and powder XRD techniques. Spectral studies indicated that both CDs form 1:1 inclusion complex with MFA and ALF. The experimental results revealed that the inclusion process is a spontaneous process. Time-resolved fluorescence studies suggested that ALF exhibited biexponential decay in aqueous and triexponential decay in CD whereas significant enhancement of lifetime of decay components of MFA was observed. Morphologies of drug-CD complexes observed by TEM demonstrate that self-aggregates of MFA/α-CD, ALF/α-CD and ALF/β-CD were nano-sized particles while vesicles were observed for MFA/β-CD. A spatial arrangement of inclusion complex is proposed based on 1H NMR and PM3 results. Investigations of thermodynamic and electronic properties confirmed the stability of the inclusion complex.
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Siva S, Udovicich C, Shaw M, Violet J, Chander S, Bressel M, Goad J, Lawrentschuck N, Foroudi F, Murphy D. Stereotactic radiotherapy for bone and nodal oligometastases: Patterns of relapse in a prospective clinical trial. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/s1569-9056(17)31012-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Siva S, Pham D, Tan T, Lam J, Bressel M, Price J, Gill S, Shaw M, Tai K, Violet J, Lau E, Parameswaran B, Chesson B, Lawrentschuck N, Goad J, Murphy D, Kron T, Foroudi F. Principal Analysis of a Phase Ib Trial of Stereotactic Body Radiation Therapy (SBRT) for Primary Kidney Cancer. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Gandhidasan S, Bressel M, Kron T, Shaw M, Chu J, Chander S, Wheeler G, Plumridge N, Chesson B, Haworth A, David S, Ball D, Siva S. Single-Fraction Stereotactic Ablative Body Radiation Therapy as an Effective Management of Oligometastasis: Results From 133 Consecutive Patients. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kanjanapan Y, Deb S, Young R, Bressel M, Mileshkin L, Rischin D, Hofman M, Narayan K, Siva S. Prognostic biomarkers in locally advanced cervical cancer (Cx Ca) treated with chemoradiation (CRT). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw363.62] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Cazoulat G, Kipritidis J, Siva S, Hofman M, Jolly S, Matuszak M, Balter J, Keall P, Brock K. WE-AB-202-05: Validation of Lung Stress Maps for CT-Ventilation Imaging. Med Phys 2016. [DOI: 10.1118/1.4957746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Franich R, Supple J, Siva S, Taylor M, Kron T. EP-1908: An image processing technique for simulating CT image sets for IGRT quality assurance. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)33159-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Siva S, Ellis R, Ponsky L, Teh B, Mahadevan A, Muacevic A, Onishi H, Wersall P, Nomiya T, Lo S. A Multinational Report on Technical Factors of Stereotactic Body Radiation Therapy for Primary Renal Cell Carcinoma. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lo S, Ellis R, Ponsky L, Teh B, Mahadevan A, Muacevic A, Onishi H, Wersall P, Nomiya T, Siva S. A Multinational Report on Factors of Stereotactic Body Radiation Therapy for Primary Renal Cell Carcinoma: Patient Selection and Follow-up. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Siva S, Senan S, Ball D. Ablative therapies for lung metastases: a need to acknowledge the efficacy and toxicity of stereotactic ablative body radiotherapy. Ann Oncol 2015; 26:2196. [DOI: 10.1093/annonc/mdv287] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kipritidis J, Hofman M, Siva S, Callahan J, Le Roux P, Woodruff H, Counter W, Hardcastle N, Keall P. TU-G-BRA-02: Can We Extract Lung Function Directly From 4D-CT Without Deformable Image Registration? Med Phys 2015. [DOI: 10.1118/1.4925752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Tan K, Thomas R, Hardcastle N, Pham D, Kron T, Foroudi F, Ball D, te Marvelde L, Bressel M, Siva S. Predictors of Respiratory-induced Lung Tumour Motion Measured on Four-dimensional Computed Tomography. Clin Oncol (R Coll Radiol) 2015; 27:197-204. [DOI: 10.1016/j.clon.2014.12.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Revised: 11/05/2014] [Accepted: 12/03/2014] [Indexed: 12/25/2022]
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Reynders K, Illidge I, Siva S, Chang J, De Ruysscher D. PO-1080 The abscopal effect of local radiotherapy in the clinic: a systematic review on its occurrence. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41072-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kipritidis J, Siva S, Hofman M, Callahan J, Hardcastle N, Keall P. PO-0955: Comparing lung function changes between serial CT-ventilation and Galligas Ventilation PET/CT. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40947-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Siva S, Jackson P, Kron T, Shaw M, Chander S, Gill S, Hardcastle N, Pham D, Hofman M, Foroudi F. PO-0716: Kidney function loss is directly dose dependent after SBRT for primary RCC as assessed by Cr-51 EDTA + DMSA SPECT/CT. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40708-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hardcastle N, Hofman M, Hicks R, Callahan J, Kron T, MacManus M, Ball D, Jackson P, Siva S. EP-1530: Limitations of deformable image registration in 4D PET V/Q imaging for functional assessment in lung radiotherapy. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41522-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Siva S, Kirby K, Caine H, Pham D, Kron T, Te Marvelde L, Whalley D, Stevens MJ, Foroudi F, MacManus M, Ball D, Eade T. Comparison of Single-fraction and Multi-fraction Stereotactic Radiotherapy for Patients with 18F-fluorodeoxyglucose Positron Emission Tomography-staged Pulmonary Oligometastases. Clin Oncol (R Coll Radiol) 2015; 27:353-61. [PMID: 25698068 DOI: 10.1016/j.clon.2015.01.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 11/17/2014] [Accepted: 11/24/2014] [Indexed: 01/12/2023]
Abstract
AIM To compare outcomes of single-fraction and multi-fraction stereotactic ablative body radiotherapy (SABR) for pulmonary metastases. MATERIALS AND METHODS A retrospective review from two academic institutions of patients with one to three pulmonary metastases staged with (18)F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) scans. For single-fraction SABR, 26 Gy was prescribed for peripheral targets and 18 Gy for central targets. In the multi-fraction cohort, 48 Gy/4 or 50 Gy/5 was prescribed for peripheral targets and 50 Gy/5 was prescribed for central targets. Three-dimensional conformal radiotherapy (3D-CRT), intensity-modulated radiotherapy (IMRT) and volumetric-modulated arc therapy (VMAT) plans were delivered using heterogeneity corrections. Conformity indices at an intermediate dose (R50%) and at a high dose (R100%) were used to assess a relationship with the planning target volume (PTV). Overall survival, local and distant progression and toxicity rates were analysed from the date of treatment completion. RESULTS Between February 2010 and June 2013, 65 patients with 85 pulmonary metastases were reviewed. The median follow-up was 2.1 years. Metastases most commonly originated from colorectal cancer (31%), followed by non-small cell lung cancer (25%). 3D-CRT was used in 52 targets, IMRT in 21 and VMAT in 12. 3D-CRT showed a lower median R50% (P=0.01), but a higher median R100% than IMRT/VMAT (P=0.04). The R50% index was inversely correlated to the PTV with all techniques (P=0.01). Overall survival at 1 and 2 years in all patients was 93% (95% confidence interval 87-100%) and 71% (95% confidence interval 58-86%), respectively. The 2 year freedom from local and distant progression was 93% (95% confidence interval 86-100%) and 38% (95% confidence interval 27-55%), respectively. There were no significant differences between overall survival (P=0 .14), time to distant progression (P=0.06) or toxicity rates (P=0.75) between single- and multi-fraction cohorts. CONCLUSION We report comparable local control, overall survival and toxicity rates between single-fraction and multi-fraction SABR treatments in patients with FDG-PET-staged pulmonary oligometastases. We propose a guideline for R50% conformity incorporating 3D-CRT/IMRT/VMAT techniques with heterogeneity corrected planning algorithms.
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Siva S, Sudharsan S, Sayee Kannan R. Synthesis, characterization and ion-exchange properties of novel hybrid polymer nanocomposites for selective and effective mercury(ii) removal. RSC Adv 2015. [DOI: 10.1039/c5ra13004b] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A schematic representation of the current research work.
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