{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T02:45:15Z","timestamp":1747190715533,"version":"3.40.5"},"reference-count":19,"publisher":"Wiley","license":[{"start":{"date-parts":[[2021,7,27]],"date-time":"2021-07-27T00:00:00Z","timestamp":1627344000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Scientific Programming"],"published-print":{"date-parts":[[2021,7,27]]},"abstract":"<jats:p>In order to study the analysis of blood flow field characteristics of cerebral aneurysm patients before and after stent implantation based on CT images of ART-TV-PI, this paper firstly improved the ART-TV algorithm of algebraic reconstruction technology and obtained the ART-TV-PI algorithm, which was compared with the ART algorithm and ART-TV algorithm. Afterwards, the CT images based on the above three algorithms were used to analyze the changes of average blood flow velocity, average wall pressure, average wall deformation, and average shear force of 48 cases of cerebral aneurysm patients before and after stent implantation. The results showed that the mean square error and radiation dose of the ART-TV-PI algorithm (0.00012 and 1.65\u2009mSv) were significantly lower than those of the ART algorithm (0.0031 and 3.09\u2009mSv) and ART-TV algorithm (0.00082 and 2.52\u2009mSv), and the signal-to-noise ratio (23.94) was significantly higher than those of the ART algorithm (11.32) and ART-TV algorithm (16.89), with statistically significant differences (<jats:inline-formula>\n                     <a:math xmlns:a=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\">\n                        <a:mi>P<\/a:mi>\n                        <a:mo>&lt;<\/a:mo>\n                        <a:mn>0.05<\/a:mn>\n                     <\/a:math>\n                  <\/jats:inline-formula>). The differences of mean blood flow velocity, mean wall pressure, mean wall deformation, and mean shear force before and after stent implantation among the three algorithms were not statistically significant (<jats:inline-formula>\n                     <c:math xmlns:c=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\">\n                        <c:mi>P<\/c:mi>\n                        <c:mo>&gt;<\/c:mo>\n                        <c:mn>0.05<\/c:mn>\n                     <\/c:math>\n                  <\/jats:inline-formula>), and the average index of the ART-TV-PI algorithm was the highest. Under the ART-TV-PI algorithm, the mean blood flow velocity (0.044\u2009m\/s), the mean wall pressure (71.7\u2009Pa), the mean wall deformation (0.057\u2009mm), and the mean shear force (889\u2009Pa) after stent implantation were significantly lower than those before stent implantation (0.165\u2009m\/s, 160.8\u2009Pa, 0.721\u2009mm, and 2690\u2009Pa), with average decreases of 73.3%, 55.4%, 92.1%, and 64.3%, respectively, and the differences were statistically significant (<jats:inline-formula>\n                     <e:math xmlns:e=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\">\n                        <e:mi>P<\/e:mi>\n                        <e:mo>&lt;<\/e:mo>\n                        <e:mn>0.05<\/e:mn>\n                     <\/e:math>\n                  <\/jats:inline-formula>). In conclusion, the images reconstructed by the ART-TV-PI algorithm have good image quality, which provides great convenience for surgical examination of cerebral aneurysm stent implantation and is worthy of clinical application.<\/jats:p>","DOI":"10.1155\/2021\/8982101","type":"journal-article","created":{"date-parts":[[2021,7,28]],"date-time":"2021-07-28T22:20:06Z","timestamp":1627510806000},"page":"1-10","source":"Crossref","is-referenced-by-count":0,"title":["Computed Tomography Images under Optimized Iterative Reconstruction Algorithm for Blood Flow Field Characteristics in Cerebral Aneurysm before and after Stent Implantation"],"prefix":"10.1155","volume":"2021","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5278-7501","authenticated-orcid":true,"given":"Changkun","family":"Lin","sequence":"first","affiliation":[{"name":"Department of Radiology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570311, Hainan, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9710-9157","authenticated-orcid":true,"given":"Chuizhi","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Radiology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570311, Hainan, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3632-0164","authenticated-orcid":true,"given":"Yan","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Radiology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570311, Hainan, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1312-9543","authenticated-orcid":true,"given":"Nailong","family":"Jia","sequence":"additional","affiliation":[{"name":"Department of Radiology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570311, Hainan, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4875-2960","authenticated-orcid":true,"given":"Jinghui","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Radiology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570311, Hainan, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2721-0804","authenticated-orcid":true,"given":"Qimao","family":"Fu","sequence":"additional","affiliation":[{"name":"Department of Radiology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570311, Hainan, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"issue":"1","key":"1","first-page":"53","article-title":"The prevalence and coping strategies for four main chronic non-communicable diseases","volume":"34","author":"G. 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