DOSIS RADIASI DARI TINDAKAN CT-SCAN KEPALA

Johan A. E Noor, Indrastuti Normahayu

Abstract


The research on mapping of mangrove distribution and spatial analysis of land suitability for pond aquaculture in coastal area of Gending sub District, Probolinggo are to map the distribution of existing mangrove forests along the coastal area of Gending and to determine the land suitability for aquaculture activities. This research used Landsat satellite imagery as an initial imaging data of the study area. Band manypulation using visual band 3-2-1, 4-3-2 and infrared bands 4-5-3. The use of this band based on their sensitivity in capturing the value of a high reflectance of vegetation. Rupa Bumi Indonesia Map scale 1: 25,000 from Bakorsurtanal used as a correction of satellite imagery. Furthermore, the survey field mapping with a model of participatory mapping done to calibrate the field data and sampling of water quality in the study area.

Based on the analysis of satellite image and survey found that mangroves are spread almost evenly along the coastal area of Gending with a high density (visually) and identified along the coordinates of 762720 mT, 9144134 mU and 795851 mT, 9144081 mU. While the aquaculture area identified spread along the coastal with the coordinates 751394 mT, 9138874 mU to 776632 mT, 9147895 mU. Through the spatial analysis of land suitability described that most of the pond in the western part of coastal area is very suitable for aquaculture activities.


Keywords: Mapping, mangroves, land suitability


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References


Ambrose, J. 1973. Computerized transverse axial scanning (tomography): Part 2. Clinical application. British Journal of Radiology. 46(552): 1023-1047.

Ambrose, J. dan G. N. Hounsfield. 1973. Computerized transverse axial tomography. British Journal of Radiology. 46(542): 148-149.

ARPANSA. 2004. National Directory for Radiation Protection - Edition 1.0. The Australian Radiation Protection and Nuclear Safety Agency. Canberra, Australia.

Beckmann, E. C. 2006. CT scanning the early days. British Journal of Radiology. 79: 5-8.

Brenner, D. J. dan E. J. Hall. 2007. Computed tomography--an increasing source of radiation exposure. New England Journal of Medicine. 357(22): 2277-2284.

Daido, H. 2002 Review of soft x-ray laser researches and developments. Reports on Progress in Physics. 65 1513.

deGonzález, A. B., M. Mahesh, K.-P. Kim, M. Bhargavan, R. Lewis, F. A. Mettler dan C. Land. 2009. Projected cancer risks from computed tomographic scans performed in the United States in 2007. Archives of International Medicine. 169(22): 2071-2077.

Einstein, A. J. 2012. Beyond the bombs: cancer risks of low-dose medical radiation. Lancet. 380 (9840 ): 455-457.

Einstein, A. J., J. Sanz, S. Dellegrottaglie, M. Milite, M. Sirol, M. Henzlova dan S. Rajagopalan. 2008. Radiation dose and cancer risk estimates in 16-slice computed tomography coronary angiography. Journal of Nuclear Cardiology. 15(2): 232-240.

Hounsfield, G. N. 1973. Computerized transverse axial scanning (tomography): Part 1. Description of system. British Journal of Radiology. 46(552): 1016-1022.

ICRP. 1977. ICRP Publication No. 26: The 1977 Recommendations of the International Commission on Radiological Protection. International Commission on Radiological Protection. Oxford.

ICRP. 2005. Low-dose Extrapolation of Radiation-related Cancer Risk: ICRP publication 99. Annals of the ICRP. 35(4): 1-142.

ICRP. 2007. The 2007 Recommendations of the International Commission on Radiological Protection: ICRP publication 103. Annals of the ICRP. 37(2-4): 1-332.

ICRP. 2007. Managing Patient Dose in Multi-Detector Computed Tomography (MDCT): ICRP Publication 102. Annals of the ICRP. 37(1): 1-80.

Imanishi, Y., A. Fukui, H. Niimi, D. Itoh, K. Nozaki, S. Nakaji, K. Ishizuka, H. Tabata, Y. Furuya, M. Uzura, H. Takahama, S. Hashizume, S. Arima dan Y. Nakajima. 2005. Radiation-induced temporary hair loss as a radiation damage only occurring in patients who had the combination of MDCT and DSA. European radiology. 15(1): 41-46.

ImPACT-scan. 2009. CTDosimetry.

Jones, D. G. dan P. C. Shrimpton. 1991. NRPB-R250: Survey of CT practice in the UK. Part 3: Normalised organ doses calculated using Monte Carlo techniques. Report SR250, National Radiological Protection Board, Didcot, Oxforshire, UK.

Jones, D. G. dan P. C. Shrimpton. 1993. NRPB-SR250: Normalised Organ Doses for X-Ray Computed Tomography Calculated Using Monte Carlo Techniques. Didcot, Oxforshire, UK, National Radiological Protection Board.

Kalra, M. K., S. M. R. Rizzo dan R. A. Novelline. 2005. Reducing radiation dose in emergency computed tomography with automatic exposure control techniques. Emergency Radiology. 11: 267-274.

Mettler, F. A., W. Huda, T. T. Yoshizumi dan M. Mahesh. 2008. Effective doses in radiology and diagnostic nuclear medicine: a catalog. Radiology. 248(1): 254-263.

Mettler, F. A., B. R. Thomadsen, M. Bhargavan, D. B. Gilley, J. E. Gray, J. A. Lipoti, J. McCrohan, T. T. Yoshizumi dan M. Mahesh. 2008. Medical radiation exposure in the US in 2006: Preliminary results. Health Physics. 95(5): 502-507.

Pearce, M. S., J. A. Salotti, M. P. Little, K. McHugh, C. Lee, K. P. Kim, N. L. Howe, C. M. Ronckers, P. Rajaraman, S. A. W. Craft, L. Parker dan A. B. d. González. 2012. Radiation exposure from CT scans in childhood and subsequent risk of leukaemia and brain tumours: a retrospective cohort study. Lancet. 380(9840): 499 - 505.

Popescu, S. 2004. Method and apparatus for automatic exposure control in CT scanning. Siemens Aktiengesellschaft, Munich. US Patent No. 6744846.

Rehani, M. M. dan P. Ortiz-Lopez. 2006. Radiation effects in fluoroscopically guided cardiac interventions-keeping them under control. International Journal of Cardiology. 109(2): 147-151.

Scarlett, N. V. Y., I. C. Madsen, C. Manias dan D. Retallack. 2001. On-line X-ray diffraction for quantitative phase analysis: Application in the Portland cement industry. Powder Diffraction. 16: 71-80.

Shrimpton, P. C., D. G. Jones, M. C. Hillier, B. F. Wall, J. C. Le Heron dan K. Faulkner. 1991. NRPB-R249: Survey of CT practice in the UK. Part 2: Dosimetric aspects. Report SR250, National Radiological Protection Board, Didcot, Oxforshire, UK.

Stamm, G. 2012. Collective Radiation Dose from MDCT: Critical Review of Surveys Studies dalam Radiation Dose from Multidetector CT. D. Tack, M. K. Kalra dan P. A. Gevenois, Eds. Springer Verlag. Heidelberg. pp. 209-229.

Toth, T. L. 2002. Dose reduction opportunities for CT scanners. Pediatric Radiology. 32(4 ): 261-267.


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