Keywords: Scatter-to-Primary Ratio, Total Body Irradiation, Anthropomorphic phantom
Type of paper: Paper in proceedings
Title: Reconstruction of external gamma beam absorbed dose in
radiation accident
- Authors:
- Vrtar, Mladen (53442)
- Editors
- Franić, Zdenko
- Kubelka, Dragan
Proceedings title: Zbornik radova drugoga simpozija hrvatskog društva za zaštitu od zračenja
Language: hrvatski
Place: Zagreb
Year: 1994
ISBN/ISSN: 53-96133-0-2
Pages: from 207 to 212
Meeting: Drugi simpozij hrvatskog društva za zaštitu od zračenja
Held: from 11/23/94 to 11/25/94
Summary: Percentage depth doses in the anthropomorphic phantom
exposed to 60-Co external gamma irradiation with small beams applied to a
part of phantom's body and large total body irradiation beams exceeding the
phantom's limits were calculated under the following assumption: There were
available dose readings in a number of points in a space or in front of the
phantom, as if obtained by personal or stationary detectors in the region
of a hypothetical irradiation accident or proposed by dose profile
distribution in the case of real radiotherapy treatment. The doses in other
points were able to find by linear interpolation.
Keywords: Radiation accident, 60-Co gamma irradiation, Dosimetry
Type of paper: Paper in proceedings
Title: A generalized theoretical description of an
anthropomorphic water phantom in 60-Co TBI dosimetry
- Authors:
- Vrtar, Mladen (53442)
Proceedings title: 10th Congress of the Polish Society of Medical Physics. Suppl.Polish J.Med.Phys.
Language: engleski
Place: Krakow, Poljska
Year: 1995
Pages: from 153 to 154
Meeting: 10th Congress of the Polish Society of Medical Physics (the hundred years after the discovery of x-rays)
Held: from 09/15/95 to 09/18/95
Type of paper: Summary in proceedings
Title: Algorithm for lung correction factor in phantoms of
different sizes under 60-Co TBI
- Authors:
- Vrtar, Mladen (53442)
- Editors
- Mijnheer, Ben
- ESTRO secretariat,
Proceedings title: First biennial ESTRO meeting on physics in clinical radiotherapy
Language: engleski
Place: Budapest, Hungary
Year: 1991
Pages: from 91 to 91
Meeting: First biennial meeting on physics in clinical radiotherapy (ESTRO - European Society for Therapeutic Radiology and Oncology)
Held: from 10/14/91 to 10/17/91
Summary: The absorbed dose calculation was performed for the
lung
inhomogeneities in cubical phantom representing a man lying
on his side as during AP-PA Total Body Irradiation.Different
phantom dimensions in volume and sizes (AP:12 to 32 cm),lung
cross sections (25 to 400 sq.cm), chest wall thickness (2 to
9 cm) and lung densities, were found to influence the mid
plane correction factor. The corresponding values and the
presented algorithm enabled the TBI in vivo dosimetry in lung
region.
Keywords: Lung correction factor, Total Body Irradiation, In vivo dosimetry
Type of paper: Summary in proceedings
Title: Mid plane dose factors in 60-Co TBI; A systematical
approach based upon theoretical model of anatomic phantom
- Authors:
- Vrtar, Mladen (53442)
- Editors
- Shaw, J.E.
Proceedings title: Second biennial ESTRO meeting on physics in clinical radiotherapy
Language: engleski
Place: Prag, Czech Republik
Year: 1993
Pages: from 108 to 108
Meeting: Second biennial meeting on physics in clinical radiotherapy
Held: from 05/28/93 to 05/30/93
Summary: All dimensions of the constituent parts of the
theoretical
anatomic phantom in AP-PA 60-Co Total Body Irradiation (TBI)
were subject to change (for ex. length 100-200 cm). Theory
was based on an improved method of sector integration where
the effects of lack of scatter were included (finite width).
The difference in Tissue air ratio (TAR) between reference
TBI theor. model and the experimental one was 2.1% (average).
Mid plane correction factors in proportional phantom sizes
were found.
Keywords: Theoretical anatomic phantom, Total Body Irradiation, Dose correction factors, In vivo dosimetry
Type of paper: Summary in proceedings
Title: Total Body Irradiation Prior To Bone Marrow
Transplantation
- Authors:
- Markulin-Grgić, Ljerka (29401)
- Vrtar, Mladen (53442)
- Šantek, Fedor
- Purišić, Anka
- Krajina, Zdenko
Proceedings title: VIII kongres kancerologa Jugoslavije, Libri oncologici, Suppl. 1
Language: hrvatski
Place: Zagreb
Year: 1991
ISBN/ISSN: ISSN0300-8142
Pages: from 10 to 10
Meeting: VIII kongres kancerologa Jugoslavije
Held: from 05/09/91 to 05/11/91
Type of paper: Computer program
Title: Calculation of dose in an anthropomorphic phantom with
variable dimensions under 60-Co gamma total body irradiation
- Authors:
- Vrtar, Mladen (53442)
Odering party: Klinika za onkologiju i radioterapiju KBC Rebro, Jedinica za radiofiziku
Institution depot: Klinika za onkologiju i radioterapiju KBC Rebro, Jedinica za radiofiziku
HW platform: PS/Value Point IBM, M6381
Programming language: fortran 77
Year: 1992
Type of paper: Computer program
Title: Results of in vivo dosimetry in 60-Co gamma total body
irradiation
- Authors:
- Vrtar, Mladen (53442)
Odering party: Klinika za onkologiju i radioterapiju KBC Rebro, Jedinica za radiofiziku
Institution depot: Klinika za onkologiju i radioterapiju KBC Rebro, Jedinica za radiofiziku
HW platform: PS/Value Point IBM, M6381
Programming language: fortran 77
Year: 1994
Type of paper: Manuscript
Title: A model of in vivo dosimetry and quality assurance
analysis of Zagreb Total Body Irradiation.
- Authors:
- Vrtar, Mladen (53442)
- Kovačević, Nenad
Language: engleski
Summary: Aim of the work was to establish a systematic and easy
method for determination of Mid Plane Dose and Lung Correction Factors in
60-Co TBI in vivo dosimetry, based on input and output dose readings. The
quality assurance analysis of dosimetric results of 230 patients who
undergone TBI in a 10 years period, was performed. Ratio of the mean
measured dose values of all locations and the stated dose (12.45 Gy, 3
days, 3 fractions) was 0.998, with SD =.033, and the total combined
uncernaity of TBI dosimetry (from all sources of error) was 9.4%.
Other: Rukopis je poslan u časopis "Strahlentherapie und Onkologie"
Type of paper: Invited lecture
Title: Lung correction factors in anatomic TBI phantom.
Theoretical model and experiment.(9th TBI working group meeting of DGMP),
1993
Institution: Institut fuer Strahlentherapie, Allgemeine Krankenhaus HH - St. Georg
Year: 1993
Type of paper: Invited lecture
Title: A practical method of TBI in vivo dosimetry based on real
scatter contributions (8. Treffen des Arbeitkreises "Physikalische Aspekte
der Ganzkoerperbestrahlung" der Deutschen Gesselschaft fuer Medizinische
Physik (DGMP)), 1992
Institution: Allgemeine Krankenhaus der Stadt Wien
Year: 1992
Type of paper: Invited lecture
Title: Dosimetry of external radiation (Specialized course
"Medical planning and care in nuclear accidents"), 1993
Institution: Zavod za nuklearnu medicinu, KBC Rebro
Year: 1993
Type of paper: Invited lecture
Title: Analysis of semiconductor in vivo dosimetry by Zagreb TBI
model applied to 230 patients prior to BMT. 11. Jahrestagung des
Arbeitkreises "Ganzkoerperbestrahlung" der DGMP, 1995
Institution: Klinik fuer Strahlentherapie und Radioonkologie, Universitaet Leipzig
Year: 1995
Type of paper: Invited lecture
Title: A Note on Scatter to Primary Ratio in Total Body
Irradiation. (10. Treffen des Arbeitskreises "Physikalische Aspekte der
Ganzkoerperbestrahlung" der DGMP), 1994
Institution: Strahlenklinik, Universitaetsklinikum Essen
Year: 1994
