Image quality, diagnostic accuracy, and potential for radiation dose reduction in thoracoabdominal CT, using Sinogram Affirmed Iterative Reconstruction (SAFIRE) technique in a longitudinal study

Scharf, Michael; Brendel, Stephanie; Melzer, Katja; Hentschke, Christian; May, Matthias; Uder, Michael; Lell, Michael

doi:10.1371/journal.pone.0180302

Cited by 11 publications

(10 citation statements)

References 30 publications

(44 reference statements)

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“…L'amp erage est modul e automatiquement par l'appareil (CARE Dose 4D, Siemens) [26]. Les images sont reconstruites par un algorithme it eratif appliqu e aux donn ees brutes (Safire, Siemens) [27][28][29].…”

Section: Appareil Param Etres Et Protocole D'acquisitionunclassified

Development and Evaluation of a CT Pulmonary Angiography Protocol Dedicated to Pregnant and Postpartum Women

Cantarinha¹,

Dillenseger

Bellin³

2020

Journal of Medical Imaging and Radiation Sciences

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Section: Appareil Param Etres Et Protocole D'acquisitionunclassified

Development and Evaluation of a CT Pulmonary Angiography Protocol Dedicated to Pregnant and Postpartum Women

Cantarinha¹,

Dillenseger

Bellin³

2020

Journal of Medical Imaging and Radiation Sciences

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“…It can extremely reduce the noises of CT images and has a significant effect on the removal of spiral CTartifacts. is algorithm can be applied in CT image reconstruction to effectively improve the image quality, which can further reduce the radiation dose of CT scans [12]. Moreover, related studies have proved that the improvement of SAFIRE technology can decrease the CTscan dose without increasing the noise of the CT image, and the impact on the image quality is relatively small [13].…”

Section: Introductionmentioning

confidence: 99%

Values of Sinogram Affirmed Iterative Reconstruction Algorithm-Based Low-Dose Computed Tomography Imaging in Clinical Diagnosis of Cerebral Hemorrhage

Wang

Chen

Fang

et al. 2021

Scientific Programming

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In this study, the sinogram affirmed iterative reconstruction (SAFIRE) technology combined with low-dose computed tomography (CT) scanning technology was applied to scan patients with cerebral hemorrhage to evaluate the application value of this combined technology in the diagnosis of patients with cerebral hemorrhage. 132 patients with cerebral hemorrhage admitted to the hospital were selected randomly as the research objects in this study. According to the patients’ wishes, all of them were rolled into an experimental group and a control group. Besides, patients who were willing to use low-dose CT imaging scanning technology based on the SAFIRE algorithm were classified into the experimental group, and those who received simple low-dose CT scans were classified into the control group. Subjective score, objective score (mean CT value), image noise (SD), signal-to-noise ratio (SNR), and contrast-noise ratio (CNR) were used to analyze and compare the two groups of detection methods. The results showed the following: (1) The average result of CT images was 4.05 ± 0.28 points for the control group and 4.43 ± 0.59 points for the experimental group. According to the classification, the excellent and good rates of the experimental group (89.9%) were markedly higher than the rates of the control group (65.8%), with a statistically obvious difference ( P < 0.05). (2) The standard deviation (SD), image signal-to-noise ratio (SNR), and contrast-noise ratio (CNR) results of gray matter, white matter, and cerebral hemorrhage lesions of patients from the experimental group were better than those of the control group, and the differences were statistically significant ( P < 0.05). In conclusion, the image quality of a low-dose CT scan reconstructed by the SAFIRE algorithm was superior to that of a simple low-dose CT scan. In other words, the image quality of CT images could be guaranteed by the SAFIRE technology under the condition of reducing radiation dose. It enabled patients with cerebral hemorrhage to carry out diagnostic examinations with guaranteed accuracy under the risk of low radiation and provided better imaging services for patients with cerebral hemorrhage.

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“…3 Thorax MSCT examination has a better level of sensitivity and specificity, but high radiation exposure causes higher cumulative effective radiation dose to patients compared to other examination. 4 High radiation exposure is detrimental to cancer patients undergoing follow-up and increases the level of concern for the harmful effects of radiation doses received by patients and other health professionals. 2,4 For this reason, it is necessary to reduce the radiation dose.…”

Section: Introductionmentioning

confidence: 99%

“…4 High radiation exposure is detrimental to cancer patients undergoing follow-up and increases the level of concern for the harmful effects of radiation doses received by patients and other health professionals. 2,4 For this reason, it is necessary to reduce the radiation dose.…”

Section: Introductionmentioning

confidence: 99%

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Utilization of sinogram affirmed iterative reconstruction on 128 multi slice computed tomography scan to reduce radiation dose and improve image quality on thorax multi slice computed tomography scan: chest phantom study

Fatmayanti

Adi

Kartikasari

2019

Int J Community Med Public Health

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Background: Thorax MSCT examination is a diagnostic imaging that is capable of displaying both normal and pathological lung and respiratory organs. MSCT examination also has a better level of sensitivity and specificity compared to other modalities, but the radiation exposure given is very high, so the radiation dose given to patients is high. The reduction in radiation dose is very important because of the direct exposure to sensitive tissue. One method of reducing radiation dose is by reducing the tube voltage. However, the decrease in tube voltage causes a decrease in image quality as indicated by increased noise and decreased CNR. To maintain the quality of the image at low tube voltage setting, an IR reconstruction of SAFIRE was used. The purpose of this research is to know the impact of using SAFIRE on dose radiation and image quality of thorax MSCT.Methods: This study was an experimental study with a quasi-experimental study design. The object used was the N-1 Lungman chest phantom in which an artificial tumor was attached. Radiation dose assessment used CTDI value, while image quality assessment used noise and CNR. Data processing was conducted using linear regression test.Results: There was an effect of tube voltage setting and SAFIRE setting on radiation dose and image quality.Conclusions: Tube voltage ssetting and SAFIRE setting had an effect on radiation dose and image quality. Tube voltage setting and SAFIRE strength level setting that were able to provide optimal radiation dose and image quality were tube voltage of 80 kVp and SAFIRE strength levels 3 and 4 (S3 and S4).

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Image quality, diagnostic accuracy, and potential for radiation dose reduction in thoracoabdominal CT, using Sinogram Affirmed Iterative Reconstruction (SAFIRE) technique in a longitudinal study

Cited by 11 publications

References 30 publications

Development and Evaluation of a CT Pulmonary Angiography Protocol Dedicated to Pregnant and Postpartum Women

Development and Evaluation of a CT Pulmonary Angiography Protocol Dedicated to Pregnant and Postpartum Women

Values of Sinogram Affirmed Iterative Reconstruction Algorithm-Based Low-Dose Computed Tomography Imaging in Clinical Diagnosis of Cerebral Hemorrhage

Utilization of sinogram affirmed iterative reconstruction on 128 multi slice computed tomography scan to reduce radiation dose and improve image quality on thorax multi slice computed tomography scan: chest phantom study

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