Results 31 to 40 of about 300,304 (238)

Dosimetric comparison between conventional and conformal radiotherapy for carcinoma cervix: Are we treating the right volumes?

South Asian Journal of Cancer, 2013
Background and Purpose: Conventional portals, based on bony anatomy, for external beam radiotherapy for cervical cancer have been repeatedly demonstrated as inadequate.
Jyotirup Goswami, Niladri B Patra, Biplab Sarkar, Ayan Basu, Santanu Pal   +4 more
doaj   +1 more source

Evaluation and Comparison of Dosimetric Characteristics of Semiflex®3D and Microdiamond in Relative Dosimetry under 6 and 15 MV Photon Beams in Small Fields [PDF]

Journal of Biomedical Physics and Engineering, 2022
Background: In modern radiotherapy techniques, the frequently small and non-uniformed fields can increase treatment efficiency due to their highly conformal dose distribution.
Zahra Momeni Harzanji, Mohammad Hassan Larizadeh, Nasim Namiranian, Abolfazl Nickfarjam   +3 more
doaj   +1 more source

UNCONVENTIONAL FRACTIONATION RADIOTHERAPY REGIMENS IN TREATMENT OF INOPERABLE LUNG CANCER

Сибирский онкологический журнал, 2019
The purpose of the study was to compare the efficacy and toxicity of hypofractionated versus hyperfractionated radiotherapy in patients with inoperable lung cancer.Material and Methods.
D. V. Gogolin, I. A. Gulidov, K. E. Medvedeva, Y. A. Ragulin, Y. S. Mardinsky, I. N. Ivanova, L. V. Kursova, I. I. Kotuhov, A. Y. Buksha   +8 more
doaj   +1 more source

Dose agreement analysis of treatment planning system-calculated doses and markus chamber-measured doses in the near-surface region for breast cancer patients' conformal treatment plans

Journal of Medical Physics, 2022
Background: Surface/skin dose measurement is one of the most challenging tasks for clinical dosimetry in radiotherapy and comparison with almost all the commercially available treatment planning systems (TPSs) brings a significant variation with the ...
Garima Gaur, Raja Paramjeet Singh Banipal, Pardeep Garg, Om Prakash Gurjar, Gurpreet Kaur, Sheetal Sachdeva, Romikant Grover, Manraj Singh Kang, Vinod Kumar Dangwal   +8 more
doaj   +1 more source

Different meaning of the mean heart dose between 3D-CRT and IMRT for breast cancer radiotherapy

Frontiers in Oncology, 2023
BackgroundPrevious studies in 2D and in 3D conformal radiotherapy concludes that the maximal heart distance and the mean heart dose (MHD) are considered predictive of late cardiac toxicities.
Jessica Prunaretty, Jessica Prunaretty, Celine Bourgier, Celine Bourgier, Celine Bourgier, Sophie Gourgou, Claire Lemanski, Claire Lemanski, David Azria, David Azria, David Azria, Pascal Fenoglietto, Pascal Fenoglietto   +12 more
doaj   +1 more source

Dosimetric Evaluation of Commercially Available Flat vs. Self-Produced 3D-Conformal Silicone Boluses for the Head and Neck Region

Frontiers in Oncology, 2022
BackgroundBoluses are routinely used in radiotherapy to modify surface doses. Nevertheless, considerable dose discrepancies may occur in some cases due to fit inaccuracy of commercially available standard flat boluses.
Stephan Pollmann, André Toussaint, Michael Flentje, Sonja Wegener, Victor Lewitzki   +4 more
doaj   +1 more source

Recurrence of nasopharyngeal carcinoma in the parotid region after parotid-gland-sparing radiotherapy

Journal of the Formosan Medical Association, 2011
This study reported our experience of the clinical characteristics of periparotid recurrence of nasopharyngeal carcinoma (NPC) after parotid-gland-sparing radiotherapy. We retrospectively reviewed the charts of 296 patients with NPC who underwent parotid-
Deng-Shan Lin, Yee-Min Jen, Jih-Chin Lee, Shao-Cheng Liu, Yaoh-Shiang Lin   +4 more
doaj   +1 more source

3D conformal postoperative radiotherapy with concomitant boost in uterine cancer: results of a phase I-II study (ADA-RT-1)

, 2011
A phase I-II prospective clinical trial of adjuvant accelerated radiation therapy (ADA-RT-1 trial) was set up in order to investigate the feasibility and efficacy of a pelvic conformal radiotherapy technique with concomitant boost (CB technique) to the ...
Scambia, Giovanni, Numa Cellini, Ippolito, Edy, Cellini, Numa, Morganti, Alessio Giuseppe, Mariangela Massaccesi, Valentini, Vincenzo, MASSACCESI M, Macchia, Gabriella, Francesco Deodato, Bibbò R, Alessio Giuseppe Morganti, Ferrandina, Maria Gabriella, Massaccesi, Mariangela, IPPOLITO E, CELLINI N, Edy Ippolito, Deodato, Francesco, MACCHIA G, DEODATO F, Romina Bibbò, FERRANDINA G, Gabriella Macchia, Vincenzo Valentini, VALENTINI V, Giovanni Scambia, SCAMBIA G, Valentini, Viola, Gabriella Ferrandina   +28 more
core   +1 more source

An efficacy of protection the organs at risks comparison between the intensitymodulated radiotherapy therapy (IMRT) and the three-dimensional conformal radiotherapy (3DCRT)

Journal of the Pakistan Medical Association
Objective: To compare the efficiency of three-dimensional conformal radiotherapy and intensity-modulated radiation therapy techniques. Method: The cross-sectional study was conducted from February to August 2021 at Al-Amal National Hospital, Baghdad,
Abd Al-Taj Abd Ali Khaleel, Siham Sabah Abdullah, Sabbar Shukri Al-Bayaty, Abdulrahman Mohammed Abdulbaqi, Nabaa Mohammad Ali Alazawy   +4 more
doaj   +1 more source

Early stage prostate cancer: biochemical recurrence after treatment

International Brazilian Journal of Urology, 2014
Objectives To identify retrospectively through chart analysis the biochemical recurrence frequency of localized prostate cancer at diagnosis of patients submitted to surgery or radiotherapy; to correlate diagnostic characteristics associated with higher ...
Danielle A. Zanatta, Reginaldo J. Andrade, Eduardo F. Pacagnan, Lucas W. München, Rosangela A. B. Assumpção, Vanesssa C. F. I. Mercante, Gustavo M. D. Simonetti   +6 more
doaj   +1 more source