Comparing IDREAM as an Iterative Reconstruction Algorithm against In Filtered Back Projection in Computed Tomography

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Abdel Fattah Maamoun Islam Kamal

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Journal: Iranian Journal of Medical Physics Year:2020 | Volume:17 | Issue:3 Page(s): 170-174

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Title

Comparing IDREAM as an Iterative Reconstruction Algorithm against In Filtered Back Projection in Computed Tomography

Author(s)

Abdel Fattah Maamoun Islam Kamal | Issue Writer Certificate

Keywords

Computed Tomography FBP IDREAM Image Noise Image Quality Iterative Algorithm SNR

Abstract

Introduction: Recent studies of Computed Tomography (CT) conducted on patient dose reduction have recommended using an iterative reconstruction algorithm and mA (mili-Ampere) dose modulation. The current study aimed to evaluate Iterative Dose Reduction Algorithm (IDREAM) as an iterative reconstruction algorithm. Material and Methods: Two CT protocols (i. e., A: 120 KV /150 mA, FBP; B: 120KV/ (20-150) mAs, IDREAM) to scan water and acrylic phantoms. A number of 40 patients were assigned to two CT protocols (C: n=20, 120KV/160 ± 10 mAs, FBP and D: n=20, 120 KV/ (30-150 mAs, IDREAM), the two groups (C and D) were then referred to abdomen and pelvis CT scan (Sinovision, insitum 16) with contrast. Image quality parameters, dose calculations were measured for all groups (i. e., A, B, C, and D). Results: Group B had a highly significant SNR with less significant noise (P<0. 05), in comparison with group A. In addition, uniformity was markedly higher for group B (P<0. 05) in water phantom and insignificantly different (P>0. 05) in acrylic phantom, as compared to group A. CTDIvol (A: 13. 94 mGy; B: 6. 91 mGy, P<0. 05 ) and DLP (A: 501. 76 mGy. cm; B: 248. 88 mGy. cm). Noise and SNR were significantly different (P<0. 05) in group D against C. CTDIvol (C: 30. 3± 5. 2 mGy; D: 15. 4 ± 2. 7 mGy, P<0. 05 ), DLP (C: 544± 100 mGy. cm; D: 272. 3± 50. 3 mGy. cm, P<0. 05) and the effective dose (C: 8. 1± 1. 5 mSv; D: 4. 08± 0. 75 mSv, P<0. 05) Conclusion: The results of the present study were indicative of the feasibility of IDREAMas an iterative reconstruction algorithm.

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APA: Copy

Abdel Fattah Maamoun, Islam Kamal. (2020). Comparing IDREAM as an Iterative Reconstruction Algorithm against In Filtered Back Projection in Computed Tomography. IRANIAN JOURNAL OF MEDICAL PHYSICS, 17(3), 170-174. SID. https://sid.ir/paper/780360/en

Vancouver: Copy

Abdel Fattah Maamoun Islam Kamal. Comparing IDREAM as an Iterative Reconstruction Algorithm against In Filtered Back Projection in Computed Tomography. IRANIAN JOURNAL OF MEDICAL PHYSICS[Internet]. 2020;17(3):170-174. Available from: https://sid.ir/paper/780360/en

IEEE: Copy

Islam Kamal Abdel Fattah Maamoun, “Comparing IDREAM as an Iterative Reconstruction Algorithm against In Filtered Back Projection in Computed Tomography,” IRANIAN JOURNAL OF MEDICAL PHYSICS, vol. 17, no. 3, pp. 170–174, 2020, [Online]. Available: https://sid.ir/paper/780360/en

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