151
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Zhuang T, Magnelli A, Djemil T, Videtic G, Xia P. SU-E-T-634: Dosimetric Impact of Temporal Variation of Electron Density within Planning Target Volume for Lung Cancer SBRT. Med Phys 2011. [DOI: 10.1118/1.3612597] [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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152
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Huang G, Qi P, Shang Q, Olsen LS, Stephans K, Tendulkar R, Xia P. SU-E-T-616: Shifting MLC to Follow the Prostate Movements while Concurrently Treating Pelvic Lymph Nodes. Med Phys 2011. [DOI: 10.1118/1.3612579] [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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153
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Yu N, Xia P. WE-C-BRB-04: Dosimetric Effect of Rotaional Positioning Errors on IMRT Treatment of Endometrial Cancer. Med Phys 2011. [DOI: 10.1118/1.3613323] [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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154
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Xia P, Liu Z, Qin P. Fine Structures of Embryonic Discs of In Vivo Post-hatching Porcine Blastocysts at the Pre-Primitive Streak Stage. Reprod Domest Anim 2011; 46:366-72. [DOI: 10.1111/j.1439-0531.2010.01638.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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155
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Li C, Xia P, Tian T, Kou B, Nan K. Metastasis from endometrial carcinoma to bilateral breasts presenting as inflammatory breast lesions. EUR J GYNAECOL ONCOL 2011; 32:563-566. [PMID: 22053677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND Endometrial carcinoma rarely metastasizes to the bilateral breasts and presents as an inflammatory breast lesion. In this paper, we report a case of bilateral breast metastatic endometrial carcinoma and describe the clinical and pathological features. It is the second case of this kind of disease and the first case report with full clinical data. CASE REPORT A 56-year-old Chinese woman (G3, P3) with endometrial carcinoma received cytoreductive surgery and chemotherapy. Approximately 22 months later, she presented with pain in the right axillary region and edema of the right breast. The pathology report confirmed multifocal invasive papillary adenocarcinoma of the right mammary gland, consistent with endometrial carcinoma metastasis. Although she received many lines of chemotherapy, the disease still progressed and metastasized to the contralateral breast. Gefitinib (Iressa) improved symptoms temporarily. CONCLUSIONS Bilateral breasts metastasis of endometrial carcinoma is rare and difficult to treat. Molecular targeted therapy may be an effective treatment for breast metastasis.
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McGowan E, Alling N, Shephard R, Yagoub D, Tran N, Xia P. Abstract P1-04-03: A Role for Cyclin D1 in Neoplastic Transformation in MCF-7 Breast Cancer Cells Post p14ARF-p53 Induced Senescence. Cancer Res 2010. [DOI: 10.1158/0008-5472.sabcs10-p1-04-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Many years of oncogenic insult and hormonal flux have important long-term implications for breast cancer emergence and progression. Premature-induced senescence is proposed to be a protective response against cancer development. We hypothesize that the senescence response can be subverted in some breast carcinomas, which exhibit latent hormone-dependent proliferative capacity.
The ARF-p53 pathway has long been known to play an important role in tumour surveillance halting cell cycle progression to transiently or permanently stop aberrant cells from proliferating. It is well documented that disruption of this pathway is involved in tumourigenesis, in part, through inactivation of cyclin D1. Cyclin D1 plays an important role in breast cancer progression as a regulator of CDK4/6. In addition cyclin D1 has been reported to stimulate estrogen receptor (ER) activity independent of CDK4/6.
Our initial observations showed that reactivation of ARF-p53-p21 is indeed a potent rapid inhibitor of cell proliferation in MCF-7 breast cancer cells with a senescent phenotype, however controversially cyclin D1 expression was increased and predominantly located in the nucleus. High expression of nuclear cyclin D1 and p14ARF inversely correlated with cell proliferation. Our studies showed that p14ARF regulated cyclin D1 at the post-transcriptional level. Furthermore, we have evidence from microRNA array analysis that microRNAs known to bind to the cyclin D1 3'UTR sequence were down regulated upon induction of p14ARF, contributing to cyclin D1 stability.
We found that long-term exposure to p14ARF was not a failsafe barrier to tumour progression, senescent-like cells re-entering the cell cycle correlated with reduction of nuclear cyclin D1. Conversely, continuous p14ARF expression resulted in chaotic multinucleation and preceded neoplasia. These aberrant nuclei co-stained with cyclin D1 and Ki-67, a well-known marker of cell proliferation.
These results suggest that induction of the p14ARF-p53 pathway does not entirely remove the threat of cancer resulting from hyperproliferative oncogenic signals and cyclin D1 plays a promiscuous role in prevention and progression. Arguably, in some breast cancers premature senescent cells may be precursor, or latent cancer cells.
Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P1-04-03.
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Howard M, Khan M, Miller L, Xia P. Individualized Predictive Treatment Margins to Account for Prostate Motion during Treatment using Real-time Intra-fraction Tracking. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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158
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Woody N, Stephans K, Videtic G, Djemil T, Xia P. Defining Target Volume for Lung Stereotactic Body Radiotherapy (SBRT): Comparing Patient-specific ITVs to Tumor Volume with Fixed Margins. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1205] [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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159
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Yu N, Srinivas S, DiFilippo F, Srikanthan S, Levitin A, McLennan G, Spain J, Xia P, Wilkinson D. Gamma Planar Scintigraphy Based Calculation Overestimates Lung Shunt for Y-90 Radioembolization of Liver Tumor. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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160
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Gajdos S, Kolar M, Xia P. SU-GG-I-115: Clinical Evaluation of Three Automatic Image Registration Algorithms from Two Commercial Systems. Med Phys 2010. [DOI: 10.1118/1.3468148] [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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161
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Kolar M, Xia P. SU-GG-T-144: Dosimetric Effect of Using Non-Flat Photon Beam to Create Conventional Open Fields and Standard Phantom IMRT Plans. Med Phys 2010. [DOI: 10.1118/1.3468534] [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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162
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Yu N, Gajdos S, Koyfman S, Chao S, Suh J, Xia P. SU-GG-J-60: Daily Cone Beam CT (CBCT) Reduces the Setup Margins Needed for External Beam Radiotherapy of Brain Tumors. Med Phys 2010. [DOI: 10.1118/1.3468284] [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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163
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Magnelli A, Krancevic B, Xia P. SU-GG-T-100: Comparison of Measured D-Max for Irregular Electron Cutout Fields to Treatment Planning System Prediction and Nominal Open Field D-Max. Med Phys 2010. [DOI: 10.1118/1.3468488] [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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164
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Djemil T, Gajdos S, Ouzidane M, Tendulkar R, Khan M, Xia P. SU-GG-J-66: A Single Phantom Study for the Evaluation of Accuracy of Three IGRT Techniques. Med Phys 2010. [DOI: 10.1118/1.3468290] [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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165
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Wang Y, Gajdos S, Tendulkar R, Vassil A, Bayouth J, Xia P. SU-GG-T-132: Application of Non Flat Beams for Breast Radiotherapy Using Direct Aperture Optimization. Med Phys 2010. [DOI: 10.1118/1.3468522] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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166
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Qi P, Pouliot J, Roach M, Xia P. TU-B-BRA-04: Practical Considerations for the Novel Multiple Adaptive Planning Strategy for Patients Concurrently Treated with the Prostate and Pelvic Lymph Nodes. Med Phys 2010. [DOI: 10.1118/1.3469188] [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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167
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Xia P, Li C, Dang CX. Mitochondrial DNA content in 30 paired blood and tissue samples of patients with breast cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e21117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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168
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Chen C, Xia P, Bui T, Kramer M, Hwang A, Schechter N, Fowble B. Atlas-based Cardiac Contours in Breast Cancer Patients Offer Efficiency, Standardization, and Comparable Spatial and Dosimetric Accuracy when Compared to Manually Generated Contours. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.1414] [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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169
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Mu G, Xia P. A feasibility study of using conventional jaws to deliver complex IMRT plans for head and neck cancer. Phys Med Biol 2009; 54:5613-23. [DOI: 10.1088/0031-9155/54/18/017] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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170
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Sukocheva O, Wadham C, Xia P. Role of sphingolipids in the cytoplasmic signaling of estrogens. Steroids 2009; 74:562-7. [PMID: 19167412 DOI: 10.1016/j.steroids.2008.12.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2008] [Revised: 12/16/2008] [Accepted: 12/21/2008] [Indexed: 02/05/2023]
Abstract
Recent studies have clearly demonstrated that estrogen signaling is not limited by the canonical 'genomic' pathway. Estrogens have been shown to interact with multiple cytoplasmic signaling networks including that of growth factors, cytokines, and the most recently recognised participants, sphingolipids. Sphingosine kinase (SphK), a key enzyme in metabolic pathways of sphingolipids, plays an important role in cell signaling and regulates a wide range of biological functions, including the actions of estrogens. Herein we briefly review current experimental evidence showing a critical involvement of sphingolipids in estrogen signaling, especially in breast cancer and vascular endothelial cells. In the current review we mainly focus on the SphK pathway and discuss the potential role of SphK and sphingolipids in the cellular biology of estrogens.
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Hossain S, Xia P, Descovich M, Chen J, Ma L. SU-FF-T-106: Does Intrafraction Motion Increase Dose to the Inframammary Fold Areas in Whole Breast Treatment Using Direct Machine Parameter Optimization IMRT? Med Phys 2009. [DOI: 10.1118/1.3181580] [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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172
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Qi P, Xia P. SU-FF-T-107: Selective Extended Field IMRT Can Protect Larynx and Adequately Treat the Lower Neck Lymph Nodes in Head and Neck Cancer. Med Phys 2009. [DOI: 10.1118/1.3181581] [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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173
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Yu N, Chuang C, Gottschalk A, Yom S, Xia P. SU-FF-J-109: Comparison of Lung Tumor Motion Profiles From 4D CT and a Treatment Tracking System. Med Phys 2009. [DOI: 10.1118/1.3181401] [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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174
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Qi P, Xia P. SU-FF-T-172: MU Reduction in Different Aperture Based Optimization Systems. Med Phys 2009. [DOI: 10.1118/1.3181647] [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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175
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Tsuji S, Hwang A, Weinberg V, Yom S, Quivey J, Xia P. Adaptive IMRT for Head and Neck Cancer Based on Automatically Generated Contours using Deformable Image Registration. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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176
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Xia P, Hwang A, Ludlum E, Aubin M, Pouliot J, Roach M. TU-D-AUD B-08: Clinical Validation of a Novel Adaptive Approach for Patients Concurrently Treated with the Prostate and Pelvic Lymph Nodes. Med Phys 2008. [DOI: 10.1118/1.2962580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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177
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Hossain S, Gottschalk A, Huang K, Xia P, Descovich M, Chuang C, Ma L. SU-GG-T-464: Comparison of Dose Gradient in The Critical Normal Structures Between CyberKnife and IMRT Treatment of Prostate Cancer. Med Phys 2008. [DOI: 10.1118/1.2962212] [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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178
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Hu A, Rembert J, Akazawa C, Yom S, Quivey J, Xia P. SU-GG-T-494: Dosimetric Uncertainties in Matched IMRT and Conventional Fields for Head and Neck Cancer Radiotherapy. Med Phys 2008. [DOI: 10.1118/1.2962243] [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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179
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Hwang A, Mu G, Xia P. SU-GG-T-91: Decreasing IMRT Delivery Time by Accounting for Secondary Jaw Movement. Med Phys 2008. [DOI: 10.1118/1.2961843] [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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180
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LoSasso T, Xia P. TU-A-AUD A-01: LINAC and MLC QA for IMRT. Med Phys 2008. [DOI: 10.1118/1.2962413] [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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181
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Ludlum E, Xia P. Comparison of IMRT planning with two-step and one-step optimization: a way to simplify IMRT. Phys Med Biol 2008; 53:807-21. [DOI: 10.1088/0031-9155/53/3/018] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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182
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Mu G, Ludlum E, Xia P. Impact of MLC leaf position errors on simple and complex IMRT plans for head and neck cancer. Phys Med Biol 2007; 53:77-88. [DOI: 10.1088/0031-9155/53/1/005] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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183
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Descovich M, Bevan A, Fowble B, Schechter N, Park C, Xia P. Direct Aperture Optimized IMRT vs. Forward IMRT for Whole Breast Irradiation. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.249] [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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184
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Gillis A, Hwang A, Teo K, Bacharach S, Bucci M, Millender L, Schechter N, Quivey J, Franc B, Xia P. PET-CT for Head and Neck IMRT Planning: Target Delineation and Dose Escalation. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.1636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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185
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Xia P, Hwang A, Mu G, Ludlum E, Aubin M, Pouliot J, Roach III M. Multi-Adaptive-Plan (MAP) IMRT to Accommodate the Independent Movement of the Prostate and Pelvic Lymph Nodes: A Proof of Principle Study Driven by Clinical Necessity. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.2118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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186
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Bermudez R, Millender L, Quivey J, Xia P. Incidence of Gastrostomy Tube Placement in Nasopharyngeal Carcinoma Patients Treated With Beam-Split Versus Extended-Field Intensity Modulated Radiotherapy. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.1572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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187
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Hwang A, Ludlum E, Xia P. SU-FF-T-176: Dosimetric Effects of Metallic Hip Implants On Image Guided Radiation Therapy. Med Phys 2007. [DOI: 10.1118/1.2760835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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188
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Hossain S, Xia P, Chuang C, Mu G, Verhey L, Ma L. SU-FF-J-13: Simulated Real Time Image Guided Intra-Fraction Tracking-Delivery Method for Prostate IMRT. Med Phys 2007. [DOI: 10.1118/1.2760518] [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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189
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Mu G, Xia P. SU-FF-T-277: Is Jaw-Only IMRT Feasible for Head and Neck Cancer Treatment? Med Phys 2007. [DOI: 10.1118/1.2760939] [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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190
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Xia P. TU-SAMS-AUD-01: QA for Linacs and MLC Used for IMRT. Med Phys 2007. [DOI: 10.1118/1.2761310] [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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191
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Ludlum E, Mu G, Chuang C, Xia P. SU-FF-T-278: Is Monte Carlo Calculation Necessary for Prostate Patients with Hip Prostheses? Med Phys 2007. [DOI: 10.1118/1.2760940] [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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192
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Mu G, Xia P. SU-FF-T-30: A New Software Tool for Inter Treatment Planning System IMRT Comparison Study. Med Phys 2007. [DOI: 10.1118/1.2760675] [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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193
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Teo BK, Seo Y, Xia P, Bacharach SL, Franc BL, Hasegawa BH. SU-FF-J-128: An Automatic Method to Delineate 18F-FDG PET Tumor Volumes for Radiation Treatment Planning. Med Phys 2007. [DOI: 10.1118/1.2760633] [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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194
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Meyer JL, Verhey L, Xia P, Wong J. New technologies in the radiotherapy clinic. FRONTIERS OF RADIATION THERAPY AND ONCOLOGY 2007; 40:1-17. [PMID: 17641499 DOI: 10.1159/000106025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
What are the limitations to the accuracy of our current technologies in radiation oncology? The immobilization of the patient, definition of the target, motion of the target and localization of the target are the major concerns that must be addressed. Current approaches to meet these needs have brought new technical systems with greater precision and new clinical procedures with higher expectations of practice. This text offers discussions on these issues, including advances in intensity-modulated radiotherapy planning, clinical target definition for the major tumor sites, management of organ motion, target localization and image guidance systems, and the expanding applications of high-precision treatment with stereotactic body radiotherapy.
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Mu G, Lee B, Khamene A, Celi J, Aubin M, Pouliot J, Xia P. 2791. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.1208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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196
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Chan L, Xia P, Gottschalk A, Akazawa C, Scala L, Pickett B, Hsu I, Speight J, Roach M. 2201. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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197
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Ludlum E, Akazawa C, Xia P. SU-FF-T-279: IMRT Plans Can Be Simplified Using One-Step Optimization. Med Phys 2006. [DOI: 10.1118/1.2241198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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198
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Mu G, Xia P, Morin O. TU-EE-A3-01: 2D-3D Registration of Portal Images with the Planning CT for Detection of Patient Positioning Errors. Med Phys 2006. [DOI: 10.1118/1.2241599] [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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199
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Mu G, Xia P. SU-FF-T-420: The Impact of Random and Systematic Errors of MLC Leaves On Head-And-Neck IMRT Plans. Med Phys 2006. [DOI: 10.1118/1.2241339] [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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200
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MA L, Chuang C, Xia P, Petti P, Verhey L. TU-E-ValB-02: Using Magnetically Collimated Electrons and Narrow Intensity Modulated Tangential Photons for Accelerated Partial Breast Irradiation. Med Phys 2006. [DOI: 10.1118/1.2241630] [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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