Quantitative analysis of errors in fractionated stereotactic radiotherapy

Choi, D; Kim, Dae Yong; Ahn, Yong Chan; Huh, Seung Jae; Yeo, I; Nam, Do‐Hyun; Lee, Jung Il; Park, Kwan; Kim, Jong Hyun

doi:10.1016/s0958-3947(01)00082-6

Cited by 5 publications

(5 citation statements)

References 10 publications

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“…This value is comparable to results of the other studies 0.91 ± 0.3 mm for 2 mm slice and 1.58 ± 0.5 mm for 4 mm slice. Our results are slightly agreed with study done by Choi et al (2001), the resulting error was 0.91 ± 0.3 mm for 2 mm slice thickness used compare to our study which is 1.1 ± 0.4 mm for 2.4 mm slice thickness. From this study, it is found that an increase in slice thickness may affect in the inferior-superior (vertical) direction.…”

Section: Dose Verificationsupporting

confidence: 92%

“…As the accuracy of CT localization is directly related to three dimensional (3D) image resolution. Choi et al (2001) also reported that, in geometric phantom test, a 3 mm slice was used and the resulting error was 1.2 ± 0.5 mm. This value is comparable to results of the other studies 0.91 ± 0.3 mm for 2 mm slice and 1.58 ± 0.5 mm for 4 mm slice.…”

Section: Dose Verificationmentioning

confidence: 96%

“…54 (1995) which is 1.0 mm. In general, the target isocentric deviation in the vertical direction is much greater than one in the AP or lateral direction because of gantry sag to compensate for the gantry weight (Choi et al 2001). In our case, vertical 264.11 cGy.…”

Section: Dose Verificationmentioning

confidence: 99%

See 2 more Smart Citations

Measurement of Dosimetric Parameters and Dose Verification in Stereotactic Radiosurgery (SRS)

Abdullah

Zakaria

Mohsin

et al. 2015

JSKM

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The fi rst part of this study was about measurement of dosimetric parameters for small photon beams to be used as input data for treatment planning computer system (TPS) No. 50 (1994) that dose delivered to the target volume must be within ± 5% error. No. 50 (1994), bahawa dos yang diberikan kepada isipadu sasaran mesti berada dalam ketakpastian ± 5%. Keywords: Stereotactic radiosurgery (SRS); treatment planning system (TPS); pinpoint ionisation chamber; thermoluminiscent detector (TLD); dose verifi cation ABSTRAK Bahagian pertama kajian ini adalah mengenai pengukuran parameter dosimetri bagi bim foton halus untuk digunakan sebagai data input bagi sistem perancangan rawatan berkomputer (TPS) dan untuk mengesahkan dos yang dikira oleh TPS dalam prosedur radiosurgeri stereotaktik (SRS). Data bim yang diperlukan adalah peratus dos kedalaman (PDD), nisbah paksi terluar (OAR) dan faktor penyerakan. Bim halus berdiameter 5 mm hingga 45 mm daripada kolimator kon membulat dalam SRS digunakan bagi pengukuran data bim. Pengukuran dilakukan menggunakan kebuk pengionan bersaiz kecil (0.016cc). Dalam bahagian kedua kajian ini, kami laporkan kepentingan melaksanakan prosedur jaminan kualiti

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Section: Dose Verificationsupporting

confidence: 92%

Section: Dose Verificationmentioning

confidence: 96%

See 1 more Smart Citation

Measurement of Dosimetric Parameters and Dose Verification in Stereotactic Radiosurgery (SRS)

Abdullah

Zakaria

Mohsin

et al. 2015

JSKM

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show abstract

“…The reproducibility of the LS in patient studies has proved to be less than 1 mm [ 10 , 11 , 15 ]. The GTC frame has in two recent studies shown a reproducibility with a mean error of 1.7 and 1.8 mm [ 12 , 16 ]. The reproducibility and accuracy of the Fixster frame in a clinical treatment situation has not been described previously.…”

Section: Discussionmentioning

confidence: 99%

“…Other stereotactic frames used for fractionated radiotherapy are the Laitinen stereoadapter (LS) and the Gill-Thomas-Cosman frame (GTC). These frames have reported a high level of reproducibility with a geometrical accuracy of less than 1 mm for the LS [ 10 , 11 ] and a overall accuracy of 1.7 ± 0.7 mm for the GTC [ 12 ]. In the case of the Fixster system there is no study that has investigated the accuracy of the frame regarding reproducibility in a clinical treatment situation.…”

Section: Introductionmentioning

confidence: 99%