CT pulmonary angiography – patient management approach with radiation exposure reduction
Background To determine the difference in the radiation exposure of patients undergoing conventional single-energy computed tomography pulmonary angiography (SECTPA) and dual-energy CT pulmonary angiography (DECTPA) and determination of the benefits of both methods in the diagnosis of pulmonary embo...
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Nofer Institute of Occupational Medicine
2025-02-01
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| Series: | Medycyna Pracy |
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| Online Access: | https://medpr.imp.lodz.pl/CT-pulmonary-angiography-patient-management-approach-with-radiation-exposure-reduction,200476,0,2.html |
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| author | Martin Hazlinger Zuzana Berecova Viera Lehotska |
| author_facet | Martin Hazlinger Zuzana Berecova Viera Lehotska |
| author_sort | Martin Hazlinger |
| collection | DOAJ |
| description | Background
To determine the difference in the radiation exposure of patients undergoing conventional single-energy computed tomography pulmonary angiography (SECTPA) and dual-energy CT pulmonary angiography (DECTPA) and determination of the benefits of both methods in the diagnosis of pulmonary embolism (PE).
Material and Methods
In this single-center retrospective study, 105 consecutive CTPA examinations performed on dual-source dual-energy CT scanner November 2018–December 2020 at St. Michael’s University Hospital Radiodiagnostic Clinic, Bratislava, Slovakia were reviewed for detection of acute PE and dose-length product (DLP) in each examination was noted and compared in SECTPA and DECTPA. The 105 examinations included 95 patients (mean [M] = 60.5 years, range 20–88 years).
Results
Of the 95 examined patients, 92 had an initial examination, of whom 22 had confirmed acute PE (23.9% of initially examined patients, 11 by SECTPA, and 11 by DECTPA), in 70 patients (i.e., 76.1%) PE was not present. The DLP in DECTPA was M = 344.4 mGy × cm, and in SECTPA M = 176.7 mGy × cm.
Conclusions
Mean DLP in DECTPA was almost 2-times higher than in SECTPA (with a statistically significant difference, p < 0.001), while in three-quarters of patients, acute PE was not confirmed, which is in the era of CTPA overuse unnecessary radiation exposure. However, DECTPA with iodine perfusion maps is superb in the follow-up of patients with confirmed PE by detecting small chronic subsegmental PE and thus preventing chronic complications in the form of chronic thromboembolic pulmonary hypertension, which, if untreated, is fatal. Med Pr Work Health Saf. 2025;76(1):25–30 |
| format | Article |
| id | doaj-art-98e8a30fc23f4cd0bb2de85b547647e7 |
| institution | OA Journals |
| issn | 0465-5893 2353-1339 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Nofer Institute of Occupational Medicine |
| record_format | Article |
| series | Medycyna Pracy |
| spelling | doaj-art-98e8a30fc23f4cd0bb2de85b547647e72025-08-20T02:07:19ZengNofer Institute of Occupational MedicineMedycyna Pracy0465-58932353-13392025-02-01761253010.13075/mp.5893.01373200476CT pulmonary angiography – patient management approach with radiation exposure reductionMartin Hazlinger0https://orcid.org/0000-0002-8486-6594Zuzana Berecova1https://orcid.org/0000-0002-7612-6641Viera Lehotska2St. Michael’s University Hospital, Bratislava, Slovakia (Radiodiagnostic Clinic)St. Michael’s University Hospital, Bratislava, Slovakia (Radiodiagnostic Clinic)Comenius University in Bratislava and St. Elizabeth’s Cancer Institute, Bratislava, Slovakia (II Department of Radiology, Faculty of Medicine)Background To determine the difference in the radiation exposure of patients undergoing conventional single-energy computed tomography pulmonary angiography (SECTPA) and dual-energy CT pulmonary angiography (DECTPA) and determination of the benefits of both methods in the diagnosis of pulmonary embolism (PE). Material and Methods In this single-center retrospective study, 105 consecutive CTPA examinations performed on dual-source dual-energy CT scanner November 2018–December 2020 at St. Michael’s University Hospital Radiodiagnostic Clinic, Bratislava, Slovakia were reviewed for detection of acute PE and dose-length product (DLP) in each examination was noted and compared in SECTPA and DECTPA. The 105 examinations included 95 patients (mean [M] = 60.5 years, range 20–88 years). Results Of the 95 examined patients, 92 had an initial examination, of whom 22 had confirmed acute PE (23.9% of initially examined patients, 11 by SECTPA, and 11 by DECTPA), in 70 patients (i.e., 76.1%) PE was not present. The DLP in DECTPA was M = 344.4 mGy × cm, and in SECTPA M = 176.7 mGy × cm. Conclusions Mean DLP in DECTPA was almost 2-times higher than in SECTPA (with a statistically significant difference, p < 0.001), while in three-quarters of patients, acute PE was not confirmed, which is in the era of CTPA overuse unnecessary radiation exposure. However, DECTPA with iodine perfusion maps is superb in the follow-up of patients with confirmed PE by detecting small chronic subsegmental PE and thus preventing chronic complications in the form of chronic thromboembolic pulmonary hypertension, which, if untreated, is fatal. Med Pr Work Health Saf. 2025;76(1):25–30https://medpr.imp.lodz.pl/CT-pulmonary-angiography-patient-management-approach-with-radiation-exposure-reduction,200476,0,2.htmlpulmonary embolismsubsegmental pulmonary embolismdual-energy ctsingle-energy ctradiation exposuredose‑length product |
| spellingShingle | Martin Hazlinger Zuzana Berecova Viera Lehotska CT pulmonary angiography – patient management approach with radiation exposure reduction Medycyna Pracy pulmonary embolism subsegmental pulmonary embolism dual-energy ct single-energy ct radiation exposure dose‑length product |
| title | CT pulmonary angiography – patient management approach with radiation exposure reduction |
| title_full | CT pulmonary angiography – patient management approach with radiation exposure reduction |
| title_fullStr | CT pulmonary angiography – patient management approach with radiation exposure reduction |
| title_full_unstemmed | CT pulmonary angiography – patient management approach with radiation exposure reduction |
| title_short | CT pulmonary angiography – patient management approach with radiation exposure reduction |
| title_sort | ct pulmonary angiography patient management approach with radiation exposure reduction |
| topic | pulmonary embolism subsegmental pulmonary embolism dual-energy ct single-energy ct radiation exposure dose‑length product |
| url | https://medpr.imp.lodz.pl/CT-pulmonary-angiography-patient-management-approach-with-radiation-exposure-reduction,200476,0,2.html |
| work_keys_str_mv | AT martinhazlinger ctpulmonaryangiographypatientmanagementapproachwithradiationexposurereduction AT zuzanaberecova ctpulmonaryangiographypatientmanagementapproachwithradiationexposurereduction AT vieralehotska ctpulmonaryangiographypatientmanagementapproachwithradiationexposurereduction |