Department of Nuclear Engineering, University of Dhaka, Dhaka, Bangladesh
Department of Electrical and Electronic Engineering, University of Dhaka, Dhaka, Bangladesh
Introduction: The different factors that affect the camera uniformity of Single Photon Emission Computed Tomography (SPECT) technique have been analyzed including peak shift (%) and window width of energy. The effect of peak shift and window width on SPECT image uniformity has been investigated using a point source to perform intrinsic flood images. Methods:The relation between calculated integral & differential Center Field of View (CFOV) and Useful Field of View (UFOV) uniformity values were plotted with peak shift and window width change. The effects of window width of energy 5%, 10%, 15%, 20% and 25% on SPECT images were investigated using the 99mTc radioisotope with energy of 140 keV. Results:Although 0% shift is the optimum peak shift, but in the current research we have found that the data in the range of 0% to 2% peak shift provides result with satisfactory image quality. Integral Uniformity (IU %) and Differential Uniformity (DU %) values of CFOV and UFOV were noticeably changed with the change of energy window width. In this research, the optimum energy window width of the images of different flood phantom has been found to be in the range from 15% to 20%. Conclusion: Finally, 0% to 2% peak shift at 15% energy window width applied on heart phantom provides suitable images leading to proper diagnosis which conform our findings.
Groch MW, Erwin WD. SPECT in the year 2000: basic principles. J Nucl Med Technol. 2000 Dec;28(4):233-44.
Groch MW, Erwin WD. Single-photon emission computed tomography in the year 2001: instrumentation and quality control. J Nucl Med Technol. 2001 Mar;29(1):12-8.
Critchly M. Nuclear Medicine Pocket Handbook. Amersham International PLC;1993. pp. 67.
Lecomte R. Biomedical Imaging: SPECT and PET. AIP Conf Proc. 2007;115:958.
Kang D, Sung YW, Kang CK. Fast Imaging Technique for fMRI: Consecutive Multishot Echo Planar Imaging Accelerated with GRAPPA Technique. Biomed Res Int. 2015;2015:394213.
O'Connor MK. Instrument- and computer-related problems and artifacts in nuclear medicine. Semin Nucl Med. 1996 Oct;26(4):256-77.
De Agostini A, Zatta G, Bagliani G, Tarolo GL. Proposal for a quality control procedure for rotating gamma camera tomographic systems. Radiol Med. 1987 Jul-Aug;74(1-2):109-15.
Early PJ. Textbook of Nuclear Medicine Technology. 4th ed., Mosby; 1995.
Dinish US, Song Z, Ho CJH, Balasundaram G, Attia ABE, Lu X, Tang BZ, Liu B, Olivo M. Single Molecule with Dual Function on Nanogold: Biofunctionalized Construct for In Vivo Photoacoustic Imaging and SERS Biosensing. Adv Funct Mater. 2015;25(15):2316-2325.
Evdokimov NM, Clark PM, Flores G, Chai T, Faull KF, Phelps ME, Witte ON, Jung ME. Development of 2-Deoxy-2-[(18)F]fluororibose for positron emission tomography imaging liver function in vivo. J Med Chem. 2015 Jul 23;58(14):5538-47.
Patrick DJ, Hakim M, Ahmed F, El Hakim D, Labbe R, Rubimbura V, Hacquin G, Gaux JC, Auguste M, Mansour H, Pernes JM. Effect of sublingual nitro-glycerine premedication on image analysis of using 256 multidetector computed tomography coronary angiography. OMICS J Radiol. 2014, 3(4):173.
Cerqueira MD, Matsuoka D, Ritchie JL, Harp GD. The influence of collimators on SPECT center of rotation measurements: artifact generation and acceptance testing. J Nucl Med. 1988 Aug;29(8):1393-7.
Saw CB. Effects of centre-of-rotation shift on contrast and spatial resolution of the SPECT system. Nucl Med Commun. 1986 May;7(5):373-9.
Mould RF. Quality control of nuclear medicine instrumentation. IAEA, 1983.
Iskandrian AS, Heo J, Askenase A, Segal BL, Helfant RH. Thallium imaging with single photon emission computed tomography. Am Heart J. 1987 Oct;114(4 Pt 1):852-65.
Abdelhalim MAK, Rizk RAM, Farag HI, Reda SM. Effect of energy window width on planer and SPECT image uniformity. J King Saud Univ Sci. 2009:21(2):145-150.
Liu YH, Sinusas AJ, DeMan P, Zaret BL, Wackers FJ. Quantification of SPECT myocardial perfusion images: methodology and validation of the Yale-CQ method. J Nucl Cardiol. 1999 Mar-Apr;6(2):190-204.
Prodhan, M. H., Talukder, H., Huq, F., & Mahmood, Z. H. (2016). Study of the effect of energy window width and peak shift on SPECT images to evaluate false diagnosis. Iranian Journal of Nuclear Medicine, 24(2), 76-84.
Mahidul Haque Prodhan; Hasan Talukder; Fazlul Huq; Zahid Hasan Mahmood. "Study of the effect of energy window width and peak shift on SPECT images to evaluate false diagnosis". Iranian Journal of Nuclear Medicine, 24, 2, 2016, 76-84.
Prodhan, M. H., Talukder, H., Huq, F., Mahmood, Z. H. (2016). 'Study of the effect of energy window width and peak shift on SPECT images to evaluate false diagnosis', Iranian Journal of Nuclear Medicine, 24(2), pp. 76-84.
Prodhan, M. H., Talukder, H., Huq, F., Mahmood, Z. H. Study of the effect of energy window width and peak shift on SPECT images to evaluate false diagnosis. Iranian Journal of Nuclear Medicine, 2016; 24(2): 76-84.