ALARA, Image Gently and CT-induced cancer

Cohen, Mervyn D.

doi:10.1007/s00247-014-3198-3

Cited by 68 publications

(36 citation statements)

References 67 publications

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“…to the principle of ALARA (as low as reasonably achievable) (11)(12)(13). Therefore, the mechanisms for reducing the radiation dose at MDCT may include X-ray beam collimation, X-ray beam filtration, tube current modulation and adaptation for patient body habitus (automatic exposure control) and peak kilovoltage optimization, to improve the efficiency of the detection system and the noise reduction algorithms (14,15).…”

Section: Discussionmentioning

confidence: 99%

Optimization of Scan and Reconstruction Parameters for Renal Artery CT Angiography with Iterative Reconstruction at Low kVp Compared with Filtered Back Projection at 120 kVp Acquisition

et al. 2018

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Background: As cross-sectional images expanded in clinical practice, the number of renal lesions discovered incidentally has been increasing. CT protocols for renal mass evaluation may include pre-and post-contrast phase. However, a major concern with respect to those multiphase techniques is often the involvement of radiation dose. One further critical issue is how to minimize the radiation dose for patients and provide optimizational image quality for radiologists in clinical work. Objectives: To evaluate the image quality and radiation dose of renal artery CT angiography (CTA) with optimal sinogram affirmed iterative reconstruction (SAFIRE) strength level at 80 kVp for optimizing the scan and reconstruction parameters of renal artery CTA, in comparison to 120 kVp acquisition with filtered back projection (FBP). Patients and Methods: Sixty consecutive patients were classified into three groups prospectively in this study: 1) 80 kVp group (n = 30) with FBP and 2) 80 kVp group with SAFIRE (S4) and 3) 120 kV group (n = 30) with FBP. CT values and noise were measured, contrastto-noise ratio (CNR) and signal-to-noise ratio (SNR) of the renal artery CTA were calculated for quantitative assessment. Subjective image quality was evaluated by two experienced abdominal radiologists with a five-point scale in a blinded and randomized setting for qualitative assessment. Volume CT dose index (CTDIvol) and size-specific dose estimate (SSDE) were calculated and estimated for each subject presented in this study. Results: As for quantitative assessment, CNR, SNR and CT values of renal artery in 80kVp group with SAFIRE strength levels or FBP were higher than those of 120 kVp group with FBP (all Ps < 0.05), the mean noise gradually decreased in 80kVp group when increasing the SAFIRE strength levels (S1~S5). As for qualitative assessment, the overall image quality, vessel sharpness, segmental renal artery displayed in MIP or MPR, and diagnostic confidence of the two groups were all accepted by two radiologists (inter-observer

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Section: Discussionmentioning

confidence: 99%

Optimization of Scan and Reconstruction Parameters for Renal Artery CT Angiography with Iterative Reconstruction at Low kVp Compared with Filtered Back Projection at 120 kVp Acquisition

et al. 2018

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“…Now the Alliance message has a grown from that predominantly dose-reduction foundation to one of dose management, with an emphasis on appropriate and informed use, and on the value of the imaging findings [2,3]. In the early days, one pressing need was to look critically at what we were doing, for example in excessive radiation from CT examinations, and this examination was fueled by a number of sources in both the medical literature and lay news media [4][5][6][7][8]. This recognition of radiation dose is still important, but it is now embedded within a more collective spectrum of responsibilities we have when imaging children.…”

Section: Introductionmentioning

confidence: 99%

The Think A-Head campaign: an introduction to ImageGently 2.0

et al. 2016

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“…The Media (television, radio, magazines) have produced hundreds of headlines in recent years on the topic of CT radiation and cancer (5). Many headlines are constructed to leave the reader with a conclusion that the cancer risk from CT imaging radiation is much greater than it really is (5).…”

mentioning

confidence: 99%

ALARA, Image Gently and CT-induced cancer

Cited by 68 publications

References 67 publications

Optimization of Scan and Reconstruction Parameters for Renal Artery CT Angiography with Iterative Reconstruction at Low kVp Compared with Filtered Back Projection at 120 kVp Acquisition

Optimization of Scan and Reconstruction Parameters for Renal Artery CT Angiography with Iterative Reconstruction at Low kVp Compared with Filtered Back Projection at 120 kVp Acquisition

The Think A-Head campaign: an introduction to ImageGently 2.0

Understanding the problem of a parent’s fear of their child getting cancer from CT scan radiation

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