Ms Claire Dempsey

Conjoint Lecturer

School of Health Sciences (Medical Radiation Science)

Career Summary

Biography

I am a Radiation Oncology Medical Physicist

Research Expertise
Brachytherapy Radiation Oncology

Teaching Expertise
Medical Physics

Administrative Expertise
Medical Physics

Collaborations
I collaborate with Radiation Oncologists, Medical Physicists


Keywords

  • Brachytherapy
  • Medical Physics
  • Radiation Oncology
  • Radiation Therapy

Fields of Research

Code Description Percentage
029903 Medical Physics 50
111208 Radiation Therapy 25
111299 Oncology and Carcinogenesis not elsewhere classified 25

Professional Experience

UON Appointment

Title Organisation / Department

Professional appointment

Dates Title Organisation / Department
1/01/2002 -  Senior Radiation Oncology Medical Physicist Specialist Calvary Mater Newcastle Hospital
School of Health Sciences
Australia
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Publications

For publications that are currently unpublished or in-press, details are shown in italics.


Journal article (16 outputs)

Year Citation Altmetrics Link
2014 Dempsey CL, 'Radiation therapy - science and medicine fighting the war on cancer', Science Education News, 63 11-15 (2014) [C2]
2014 Dempsey C, Govindarajulu G, Sridharan S, Capp A, O'Brien P, 'Implications for dosimetric changes when introducing MR-guided brachytherapy for small volume cervix cancer: a comparison of CT and MR-based treatments in a single centre', AUSTRALASIAN PHYSICAL & ENGINEERING SCIENCES IN MEDICINE, 37 705-712 (2014) [C1]
DOI 10.1007/s13246-014-0307-4
2014 Dempsey C, Arm J, Best L, Govindarajulu G, Capp A, O'Brien P, 'Optimal single 3T MR imaging sequence for HDR brachytherapy of cervical cancer', Journal of Contemporary Brachytherapy, 6 3-9 (2014) [C1]

Purpose: The superior image quality of 3 tesla (3T) magnetic resonance (MR) imaging in cervical cancer offers the potential to use a single image set for brachytherapy. This study... [more]

Purpose: The superior image quality of 3 tesla (3T) magnetic resonance (MR) imaging in cervical cancer offers the potential to use a single image set for brachytherapy. This study aimed to determine a suitable single sequence for contouring tumour and organs at risk, applicator reconstruction, and treatment planning. Material and methods: A 3T (Skyra, Siemens Healthcare AG, Germany) MR imaging system with an 18 channel body matrix coil generated HDR cervical cancer brachytherapy planning images on 20 cases using plastic-based treatment applicators. Seven different T2-weighted Turbo Spin Echo (TSE) sequences including both 3D and contiguous 2D scans based on sagittal, axial (transverse), and oblique planes were analysed. Each image set was assessed for total scanning time and usefulness in tumour localization via inter- and intra-observer analysis of high-risk clinical target volume (HR CTV) contouring. Applicator reconstruction in the treatment planning system was also considered. Results: The intra-observer difference in HR CTV volumes between 2D and 3D axial-based image sets was low with an average difference of 3.1% for each observer. 2D and 3D sagittal image sets had the highest intra- and inter observer differences (over 15%). A 2D axial 'double oblique' sequence was found to produce the best intra- (average difference of 0.6%) and inter-observer (mean SD of 9.2%) consistency and greatest conformity (average 0.80). Conclusions: There was little difference between 2D and 3D-based scanning sequences; however the increased scanning time of 3D sequences have potential to introduce greater patient motion artifacts. A contiguous 2D sequence based on an axial T2-weighted turbo-spin-echo (TSE) sequence orientated in all planes of the treatment applicator provided consistent tumour delineation whilst allowing applicator reconstruction and treatment planning.

DOI 10.5114/jcb.2014.41528
Citations Scopus - 3Web of Science - 3
2013 Pogson E, McNamara J, Jameson M, McDowall R, Lim A, Dempsey C, et al., 'SU-E-J-213: An Evaluation of the Reproducibility of Radiotherapy Contouring Utilizing Multiple Institutions and Treatment Planning Systems', Medical Physics, 40 200-200 (2013)
DOI 10.1118/1.4814425
2013 Dempsey C, Smith R, Nyathi T, Ceylan A, Howard L, Patel V, et al., 'ACPSEM brachytherapy working group recommendations for quality assurance in brachytherapy', Australasian Physical and Engineering Sciences in Medicine, 36 387-396 (2013)
DOI 10.1007/s13246-013-0228-7
Citations Scopus - 1
2013 Lapuz C, Dempsey C, Capp A, O'Brien PC, 'Dosimetric comparison of optimization methods for multichannel intracavitary brachytherapy for superficial vaginal tumors', BRACHYTHERAPY, 12 637-644 (2013) [C1]
DOI 10.1016/j.brachy.2013.04.009
Citations Scopus - 3Web of Science - 2
2012 Lapuz C, Dempsey C, O'Brien P, 'PO-238 DOSIMETRIC COMPARISON OF OPTIMISATION METHODS FOR MULTICHANNEL INTRACAVITARY VAGINAL BRACHYTHERAPY', Radiotherapy and Oncology, 103 S96-S96 (2012)
DOI 10.1016/S0167-8140(12)72204-1
2012 Dempsey C, Arm J, Best L, O'Brien P, Allen C, Warren-Forward H, 'PO-260 OPTIMAL MAGNETIC RESONANCE IMAGING SEQUENCE FOR HIGH-DOSE-RATE BRACHYTHERAPY OF THE CERVIX', Radiotherapy and Oncology, 103 S105-S105 (2012)
DOI 10.1016/S0167-8140(12)72226-0
2011 Dempsey CL, 'Lessons learned from a HDR brachytherapy well ionisation chamber calibration error', Australasian Physical and Engineering Sciences in Medicine, 34 529-533 (2011) [C1]
DOI 10.1007/s13246-011-0095-z
Citations Scopus - 3Web of Science - 3
2011 Dempsey C, Lapuz C, O'Brien P, Capp A, '637 poster DOSIMETRY OF SINGLE, MULTI-CHANNEL INTRACAVITARY AND INTERSTITIAL HDR BRACHYTHERAPY USING 3D INVERSE PLANNING.', Radiotherapy and Oncology, 99 S259-S259 (2011)
DOI 10.1016/S0167-8140(11)70759-9
2010 Dempsey C, 'Erratum: Methodology for commissioning a brachytherapy treatment planning system in the era of 3D planning (Australasian Physical and Engineering Sciences in Medicine DOI: 10.1007/s13246-010-0036-2)', Australasian Physical and Engineering Sciences in Medicine, 33 373-373 (2010)
DOI 10.1007/s13246-010-0047-z
2010 Dempsey CL, 'Methodology for commissioning a brachytherapy treatment planning system in the era of 3D planning', Australasian Physical and Engineering Sciences in Medicine, 33 341-349 (2010) [C1]
DOI 10.1007/s13246-010-0036-2
Citations Scopus - 1Web of Science - 1
2006 Dempsey CL, Duggan LJ, Bazley SG, Denham J, Kron T, 'Miniature LiF:Mg,Cu,P TLDs to study the effect of applicator material in 192-Ir brachytherapy', Australasian Physical & Engineering Sciences in Medicine, 29 300-302 (2006) [C1]
DOI 10.1007/BF03178394
Citations Scopus - 2
Co-authors Lisa Duggan
2005 Dempsey CL, Kron T, Hamilton C, Callan SA, Howlett SJ, Alvaro F, Back M, 'Correlation of 3D-planned and measured dosimetry of photon and electron craniospinal radiation in a pediatric anthropomorphic phantom', Radiotherapy and Oncology, 77 111-116 (2005) [C1]
DOI 10.1016/j.radonc.2005.06.035
Citations Scopus - 5Web of Science - 5
2004 Duggan LJ, Dempsey CL, Warren-Forward H, Haque M, Kron T, 'Variations in dose response with x-ray energy of LiF: Mg,Cu,P thermoluminescence dosimeters: implications for clinical dosimetry', Physics in Medicine and Biology, 49 3831-3845 (2004) [C1]
DOI 10.1088/0031-9155/49/17/001
Citations Scopus - 42Web of Science - 40
Co-authors Lisa Duggan, Helen Warren-Forward
2002 Dempsey CL, Duggan L, Bazley S, Denham J, Budzanowski M, Kron T, 'LiF:Mg,Cu,P 'Pin Worms': Miniature Detectors for Brachytherapy Dosimetry', Radiation Protection Dosimetry, 101 407-407 (2002)
Show 13 more journal articles

Conference (12 outputs)

Year Citation Altmetrics Link
2015 Sridharan S, Lapuz C, Dempsey CL, Patterson J, Ponman L, Evans M, et al., 'Four field radiotherapy, IMRT or VMAT in cervix cancer: when do the benefits of advanced planning become redundant?', Radiotherapy and Oncology (2015) [E3]
2014 Lapuz C, Govindarajulu G, Dempsey CL, Capp A, O'Brien P, 'Outcomes following CT guided multichannel cylinder brachytherapy for vaginal recurrence of endometrial cancer', Journal of Medical Radiation Science (2014) [E3]
2014 Grand M, Cronje S, Dempsey CL, Dry A, Hill R, McGhee L, et al., 'The ¿A Career in Radiation Oncology¿ project: Process, resources and outcomes', Journal of Medical Radiation Sciences (2014) [E3]
2014 Dempsey CL, Arm J, Capp A, Govindarajulu G, O'Brien P, 'Quantitative analysis of various single sequence MR imaging planes for HDR brachytherapy treatment planning of cervix cancer', Australasian Physical & Engineering Sciences in Medicine, Perth, WA (2014) [E3]
DOI 10.1007/s13246-014-0248-y
2014 Dempsey CL, Dempsey S, Kirisits C, 'The current state of Australasian MRI-based treatment planning for HDR brachytherapy of cervix cancer and comparison with international clinical data', Australasian Physical and Engineering Sciences in Medicine, Perth, WA (2014) [E3]
Co-authors Shane Dempsey
2014 Dempsey CL, Simpson P, Lapuz C, 'Dosimetric comparison of multi-channel gynaecological cylinders using IPSA and HIPO optimisation methods', Radiotherapy and Oncology, Vienna (2014) [E3]
2014 Dempsey C, Govindarajulu G, Sridharan S, Dempsey S, Capp A, O'Brien P, 'The Changing Nature of HDR Brachytherapy for Cervix-Cancer: How the Clinical Target Volume Affects the Historical Prescription Dose', INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, San Francisco, CA (2014) [E3]
Co-authors Shane Dempsey
2014 Lapuz C, Simpson P, Dempsey C, 'Determination of Standardized Objective and Constraint Settings for Inverse Planning Using IPSA and HIPO for HDR Brachytherapy Multichannel Vaginal Cylinders', INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, San Francisco, CA (2014) [E3]
2014 Govindarajulu G, Dempsey C, Trada Y, Oultram S, O'Brien P, Sridharan S, Capp A, 'IMPROVED DOSIMETRY OF RECTUM AND BLADDER WITH THE ADOPTION OF GEC-ESTRO GUIDELINES TO USE MRI FOR CERVICAL CANCER BRACHYTHERAPY', INTERNATIONAL JOURNAL OF GYNECOLOGICAL CANCER (2014) [E3]
2014 Govindarajulu G, Dempsey CL, Trada Y, Oultram S, O'Brien P, Sridharan S, Capp A, 'IMPROVED DOSIMETRY OF RECTUM AND BLADDER WITH THE ADOPTION OF GEC-ESTRO GUIDELINES TO USE MRI FOR CERVICAL CANCER BRACHYTHERAPY', International Journal of Gynecological Cancer, Melbourne, Vic (2014) [E3]
DOI 10.1097/01.IGC.0000457075.08973.89
2005 Dempsey CL, Greer PB, 'Verification of step-and-shoot breast compensator IMRT fields with an amorphous silicon EPID', Radiotherapy & Oncology, Lisboa, Portugal (2005) [E3]
Co-authors Peter Greer
2005 Dempsey CL, 'Patient-specific dose escalation with consideration of radiobiological factors', Radiotherapy & Oncology, Lisboa, Portugal (2005) [E3]
Show 9 more conferences
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Research Supervision

Current Supervision

Commenced Research Title / Program / Supervisor Type
2014 National Consensus of the Threshold Knowledge Required of Radiation Therapist Graduates in the Area of Medical Physics and Instrumentation
Radiography, Faculty of Health and Medicine
Co-Supervisor
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Ms Claire Dempsey

Position

Conjoint Lecturer
School of Health Sciences
Faculty of Health and Medicine

Focus area

Medical Radiation Science

Contact Details

Email claire.dempsey@newcastle.edu.au
Phone (02) 40143634
Mobile 0401415248
Fax (02) 40143169

Office

Room NM2
Building Mater Hospital Level 2 - New Med 2
Location Other

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