Multi Slice Spiral CT Pulmonary Angiography in Dynamic Pitch Mode using Volume Helical Shuttle Technology for the Diagnosis of Pulmonary Embolism

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dc.contributor.authorJoseph, Jijoen_US
dc.contributor.authorAnand, Rajeeven_US
dc.contributor.authorFrancis, Reshmaen_US
dc.date.accessioned2023-06-17T08:33:55Z
dc.date.available2023-06-17T08:33:55Z
dc.date.issued2022-05
dc.description.abstractIntroduction : Multi slice Computed Tomography Pulmonary Angiography (CTPA) in dynamic pitch (Volume Helical Shuttle-VHS) mode is an evolving method to visualize pulmonary arteries including the peripheral pulmonary vasculature. The purpose of this study is to evaluate CT Pulmonary Angiography in dynamic pitch mode (Volume Helical Shuttle) for pulmonary embolism in comparison with standard pitch mode. Methods : We have done a multicentric analytical comparison study with study group involving patients undergone CTPA in dynamic pitch mode-Volume Helical Shuttle (VHS) and comparison group involving patients undergone CTPA in standard pitch mode. Results : Optimal contrast enhancement phase of the pulmonary artery in the study group in Phase I to III were 22.6%, 43.4% and 34%. The best phases were the last two phases in our study. Study Group main pulmonary artery mean signal intensity is 423.83±75.94 HU and comparison groups mean signal intensity is 361.74±98.28HU (P value = 0.039). The percentages of analyzable segmental arteries were 91.6% in study group and 87.3% in comparison group (P value-0.008). The percentages of analyzable sub segmental arteries were 89.5% in study group and 84% in comparison group (P value-0.004). The study group shows less percentage of motion artefacts and higher image quality than the comparison group, however it was not statistically significant (P value >0.05). Conclusions : Multislice CTPA in dynamic pitch mode using Volume Helical Shuttle (VHS) technology increase the ability to obtain the Optimal contrast enhancement in pulmonary arteries, improves the overall image quality, obviate the need for breath holding.en_US
dc.identifier.affiliationsDepartment of Radiodiagnosis, Malankara Orthodox Syrian Church Medical College, Kerala 682311en_US
dc.identifier.affiliationsMBBS, DMRD, DNB, Assistant Professor and Corresponding Authoren_US
dc.identifier.affiliationsMBBS, MDRD, FRCR, Professor and Headen_US
dc.identifier.affiliationsMBBS, DMRD, FRCR, Consultant Radiologist, Department of Radiodiagnosis, Medical Trust Hospital, Kochi, Kerala 682016en_US
dc.identifier.citationJoseph Jijo, Anand Rajeev, Francis Reshma. Multi Slice Spiral CT Pulmonary Angiography in Dynamic Pitch Mode using Volume Helical Shuttle Technology for the Diagnosis of Pulmonary Embolism. Journal of The Indian Medical Association. 2022 May; 120(5): 19-25en_US
dc.identifier.issn0019-5847
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/216548
dc.languageenen_US
dc.publisherIndian Medical Associationen_US
dc.relation.issuenumber5en_US
dc.relation.volume120en_US
dc.source.urihttps://www.onlinejima.com/read_journals.php?article=937en_US
dc.subjectMulti slice Computed Tomography Pulmonary Angiographyen_US
dc.subjectPulmonary embolismen_US
dc.subjectDynamic pitch modeen_US
dc.subjectVolume Helical Shuttle-VHSen_US
dc.subjectStandard Pitch Modeen_US
dc.titleMulti Slice Spiral CT Pulmonary Angiography in Dynamic Pitch Mode using Volume Helical Shuttle Technology for the Diagnosis of Pulmonary Embolismen_US
dc.typeJournal Articleen_US
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