High-pitch dual-source CT angiography without ECG-gating for imaging the whole aorta: intraindividual comparison with standard pitch single-source technique without ECG-gating
PURPOSE:We aimed to perform intraindividual comparison of computed tomography (CT) parameters, image quality, and radiation exposure between standard CT angiography (CTA) and high-pitch dual source (DS)-CTA, in subjects undergoing serial CTA of thoracoabdominal aorta.METHODS:Eighteen subjects with t...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Galenos Publishing House
2017-07-01
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| Series: | Diagnostic and Interventional Radiology |
| Online Access: |
http://www.dirjournal.org/archives/archive-detail/article-preview/high-pitch-dual-source-ct-angiography-without-ecg-/55278
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| _version_ | 1797691226566164480 |
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| author | Carmelinda Manna Mario Silva Rocco Cobelli Sara Poggesi Cristina Rossi Nicola Sverzellati |
| author_facet | Carmelinda Manna Mario Silva Rocco Cobelli Sara Poggesi Cristina Rossi Nicola Sverzellati |
| author_sort | Carmelinda Manna |
| collection | DOAJ |
| description | PURPOSE:We aimed to perform intraindividual comparison of computed tomography (CT) parameters, image quality, and radiation exposure between standard CT angiography (CTA) and high-pitch dual source (DS)-CTA, in subjects undergoing serial CTA of thoracoabdominal aorta.METHODS:Eighteen subjects with thoracoabdominal CTA by standard technique and high-pitch DS-CTA technique within 6 months of each other were retrieved for intraindividual comparison of image quality in thoracic and abdominal aorta. Quantitative analysis was performed by comparison of mean aortic attenuation, noise, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR). Qualitative analysis was performed by visual assessment of motion artifacts and diagnostic confidence. Radiation exposure was quantified by effective dose. Image quality was apportioned to radiation exposure by means of figure of merit.RESULTS:Mean aortic attenuation and noise were higher in high-pitch DS-CTA of thoracoabdominal aorta, whereas SNR and CNR were similar in thoracic aorta and significantly lower in high-pitch DS-CTA of abdominal aorta (P = 0.024 and P = 0.016). High-pitch DS-CTA was significantly better in the first segment of thoracic aorta. Effective dose was reduced by 72% in high-pitch DS-CTA.CONCLUSION:High-pitch DS-CTA without electrocardiography-gating is an effective technique for imaging aorta with very low radiation exposure and with significant reduction of motion artifacts in ascending aorta; however, the overall quality of high-pitch DS-CTA in abdominal aorta is lower than standard CTA. |
| first_indexed | 2024-03-12T02:11:22Z |
| format | Article |
| id | doaj.art-9cd2f92cf40e4b55b34afad05bc8eff5 |
| institution | Directory Open Access Journal |
| issn | 1305-3825 1305-3612 |
| language | English |
| last_indexed | 2024-03-12T02:11:22Z |
| publishDate | 2017-07-01 |
| publisher | Galenos Publishing House |
| record_format | Article |
| series | Diagnostic and Interventional Radiology |
| spelling | doaj.art-9cd2f92cf40e4b55b34afad05bc8eff52023-09-06T13:26:58ZengGalenos Publishing HouseDiagnostic and Interventional Radiology1305-38251305-36122017-07-0123429329910.5152/dir.2017.1661713049054High-pitch dual-source CT angiography without ECG-gating for imaging the whole aorta: intraindividual comparison with standard pitch single-source technique without ECG-gatingCarmelinda Manna0Mario Silva1Rocco Cobelli2Sara Poggesi3Cristina Rossi4Nicola Sverzellati5 Division of Radiology Department of Surgical Sciences, University Hospital of Parma, Parma, Italy. Division of Radiology Department of Surgical Sciences, University Hospital of Parma, Parma, Italy. Division of Radiology Department of Surgical Sciences, University Hospital of Parma, Parma, Italy. Division of Radiology Department of Surgical Sciences, University Hospital of Parma, Parma, Italy. Division of Radiology Department of Surgical Sciences, University Hospital of Parma, Parma, Italy. Division of Radiology Department of Surgical Sciences, University Hospital of Parma, Parma, Italy. PURPOSE:We aimed to perform intraindividual comparison of computed tomography (CT) parameters, image quality, and radiation exposure between standard CT angiography (CTA) and high-pitch dual source (DS)-CTA, in subjects undergoing serial CTA of thoracoabdominal aorta.METHODS:Eighteen subjects with thoracoabdominal CTA by standard technique and high-pitch DS-CTA technique within 6 months of each other were retrieved for intraindividual comparison of image quality in thoracic and abdominal aorta. Quantitative analysis was performed by comparison of mean aortic attenuation, noise, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR). Qualitative analysis was performed by visual assessment of motion artifacts and diagnostic confidence. Radiation exposure was quantified by effective dose. Image quality was apportioned to radiation exposure by means of figure of merit.RESULTS:Mean aortic attenuation and noise were higher in high-pitch DS-CTA of thoracoabdominal aorta, whereas SNR and CNR were similar in thoracic aorta and significantly lower in high-pitch DS-CTA of abdominal aorta (P = 0.024 and P = 0.016). High-pitch DS-CTA was significantly better in the first segment of thoracic aorta. Effective dose was reduced by 72% in high-pitch DS-CTA.CONCLUSION:High-pitch DS-CTA without electrocardiography-gating is an effective technique for imaging aorta with very low radiation exposure and with significant reduction of motion artifacts in ascending aorta; however, the overall quality of high-pitch DS-CTA in abdominal aorta is lower than standard CTA. http://www.dirjournal.org/archives/archive-detail/article-preview/high-pitch-dual-source-ct-angiography-without-ecg-/55278 |
| spellingShingle | Carmelinda Manna Mario Silva Rocco Cobelli Sara Poggesi Cristina Rossi Nicola Sverzellati High-pitch dual-source CT angiography without ECG-gating for imaging the whole aorta: intraindividual comparison with standard pitch single-source technique without ECG-gating Diagnostic and Interventional Radiology |
| title | High-pitch dual-source CT angiography without ECG-gating for imaging the whole aorta: intraindividual comparison with standard pitch single-source technique without ECG-gating |
| title_full | High-pitch dual-source CT angiography without ECG-gating for imaging the whole aorta: intraindividual comparison with standard pitch single-source technique without ECG-gating |
| title_fullStr | High-pitch dual-source CT angiography without ECG-gating for imaging the whole aorta: intraindividual comparison with standard pitch single-source technique without ECG-gating |
| title_full_unstemmed | High-pitch dual-source CT angiography without ECG-gating for imaging the whole aorta: intraindividual comparison with standard pitch single-source technique without ECG-gating |
| title_short | High-pitch dual-source CT angiography without ECG-gating for imaging the whole aorta: intraindividual comparison with standard pitch single-source technique without ECG-gating |
| title_sort | high pitch dual source ct angiography without ecg gating for imaging the whole aorta intraindividual comparison with standard pitch single source technique without ecg gating |
| url |
http://www.dirjournal.org/archives/archive-detail/article-preview/high-pitch-dual-source-ct-angiography-without-ecg-/55278
|
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