THE EFFECT OF USING 4 POINTS LOCKS AND 9 POINTS LOCKS MASKS ON PATIENT SET-UP IN NASOPHARYNX CANCER

Rina Anggraeni; Muhammad Irsal; Shinta Gunawati Sutoro; Mahfud Edy Widiatmoko; Asumsie Tarigan; Fitrus Ardoni; Nursama Heru Apriantoro

doi:10.29303/ipr.v7i1.229

THE EFFECT OF USING 4 POINTS LOCKS AND 9 POINTS LOCKS MASKS ON PATIENT SET-UP IN NASOPHARYNX CANCER

Authors

Rina Anggraeni , Muhammad Irsal , Shinta Gunawati Sutoro , Mahfud Edy Widiatmoko , Asumsie Tarigan , Fitrus Ardoni , Nursama Heru Apriantoro

DOI:

10.29303/ipr.v7i1.229

Published:

2023-10-01

Issue:

Vol. 7 No. 1 (2024)

Keywords:

4 points locks mask, 9 points locks mask, patient set-up, Nasopharynx cancer

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Rina Anggraeni, Muhammad Irsal, Shinta Gunawati Sutoro, Mahfud Edy Widiatmoko, Asumsie Tarigan, Fitrus Ardoni, & Nursama Heru Apriantoro. (2023). THE EFFECT OF USING 4 POINTS LOCKS AND 9 POINTS LOCKS MASKS ON PATIENT SET-UP IN NASOPHARYNX CANCER . Indonesian Physical Review, 7(1), 1–9. https://doi.org/10.29303/ipr.v7i1.229

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Abstract

The set-up aims to find out the value of the shift that occurs while the patient is undergoing the irradiation process on the X-axis (right-left), Y-axis (caudal-cranial), and Z-axis (anterior-posterior). The procedure for collecting research data is by making direct observations and being involved in measuring set-up shifts. The data used amounted to 20 nasopharyngeal cancer patients. Set-up shift measurement data were taken sequentially from fractions 1-33 for each patient using 4 and 9 points locks masks. Analysis of statistical test data using SPSS version 25, to determine the effect of using 4 and 9 points locks masks on shifts in nasopharyngeal cancer irradiation set-up patients with fraction group: Group 1 (fraction 1), Group 2 (Fraction 2 – 15), Group 3 (16-33) using the Wilcoxon test because the normality test results were not fulfilled. If the p-value ≤ 0.05, there is an effect of using 4 and 9 points locks mask on shifts, while for p-value ≥ 0.05, there is no effect of using 4 and 9 points locks mask on set-up shifts in nasopharyngeal cancer irradiation set-up. The results of the shift in the set-up of 4 and 9 points lock irradiation vertically in the lateral, longitudinal, and vertical directions tend to be positive (left, caudal, posterior). There was no effect of all fraction groups using 4 and 9 points locks on the shift in nasopharyngeal cancer irradiation set-up p-value> 0.05.

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THE EFFECT OF USING 4 POINTS LOCKS AND 9 POINTS LOCKS MASKS ON PATIENT SET-UP IN NASOPHARYNX CANCER

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