Comparative study on Various Tube Voltages and Contrast Media Doses in CT Pulmonary Angiography to detect Pulmonary Thromboembolism
Background: Lowering the amount of iodinated contrast material and tube voltage may increase pulmonary artery opacification and thrombus identification without compromising picture quality. Objectives: To explore the efficiency of using lower tube voltage and a lower contrast medium dose for cond...
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| Format: | Article |
| Language: | English |
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University of Baghdad/ Al-Kindy College of Medicine
2022-12-01
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| Series: | مجله كليه طب الكندي |
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| Online Access: | https://jkmc.uobaghdad.edu.iq/index.php/MEDICAL/article/view/808 |
| _version_ | 1797974144557514752 |
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| author | Shaymaa Khalid Abdul-Qader Atheer Adnan Fadhil |
| author_facet | Shaymaa Khalid Abdul-Qader Atheer Adnan Fadhil |
| author_sort | Shaymaa Khalid Abdul-Qader |
| collection | DOAJ |
| description |
Background: Lowering the amount of iodinated contrast material and tube voltage may increase pulmonary artery opacification and thrombus identification without compromising picture quality.
Objectives: To explore the efficiency of using lower tube voltage and a lower contrast medium dose for conducting computed tomography for pulmonary angiography (CTPA) aiming to increase its accuracy in detecting pulmonary thromboembolism (PTE).
Subjects and Methods:100 patients scheduled for CTPA with a preoperative diagnosis of PTE were grouped into two: group A, (50 patients) got 1 mL/kg at 120 kV and group B, (50 patients) received 0.5 mL/kg at 80 kV.The technique of bolus tracking was implemented.Values of midpoint of multiple pulmonary artery divisions were used to assess attenuation.Significant values are those that exceed 300 Hounsfield units (HU). The dosage of radiation received by the patient, defined as the effective dose, was compared between groups.
Results: Total mean attenuationdata for the pulmonary arteries have shown to be substantially greater in group-B compared to group-A (39110.4HU vs. 335.97.9HU, P=0.001). Moreover, total dose length product (DLP) values were substantially lower in group-B (934.9 mGy.cm vs. 384.443 mGy.cm, P=0.001). While effective dose values have shown to be significantly lower in group-B (2.90.3 mSv vs. 13.21.8 mSv, P 0.001).
Conclusion: Low-kilovoltage technique and low quantity of iodinated contrast are useful in conducting (CTPA) with high accuracy in detection of pulmonary thromboembolism.
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| first_indexed | 2024-04-11T04:15:26Z |
| format | Article |
| id | doaj.art-a7ca50a14fd242f5b395f2dddcafea55 |
| institution | Directory Open Access Journal |
| issn | 1810-9543 2521-4365 |
| language | English |
| last_indexed | 2024-04-11T04:15:26Z |
| publishDate | 2022-12-01 |
| publisher | University of Baghdad/ Al-Kindy College of Medicine |
| record_format | Article |
| series | مجله كليه طب الكندي |
| spelling | doaj.art-a7ca50a14fd242f5b395f2dddcafea552022-12-31T19:40:56ZengUniversity of Baghdad/ Al-Kindy College of Medicineمجله كليه طب الكندي1810-95432521-43652022-12-0118310.47723/kcmj.v18i3.808Comparative study on Various Tube Voltages and Contrast Media Doses in CT Pulmonary Angiography to detect Pulmonary Thromboembolism Shaymaa Khalid Abdul-Qader0Atheer Adnan Fadhil1Al-Kindy College of Medicine, University of Baghdad, Baghdad, IraqRadiology Department, Baghdad Teaching Hospital, Medical City Complex, Baghdad, Iraq Background: Lowering the amount of iodinated contrast material and tube voltage may increase pulmonary artery opacification and thrombus identification without compromising picture quality. Objectives: To explore the efficiency of using lower tube voltage and a lower contrast medium dose for conducting computed tomography for pulmonary angiography (CTPA) aiming to increase its accuracy in detecting pulmonary thromboembolism (PTE). Subjects and Methods:100 patients scheduled for CTPA with a preoperative diagnosis of PTE were grouped into two: group A, (50 patients) got 1 mL/kg at 120 kV and group B, (50 patients) received 0.5 mL/kg at 80 kV.The technique of bolus tracking was implemented.Values of midpoint of multiple pulmonary artery divisions were used to assess attenuation.Significant values are those that exceed 300 Hounsfield units (HU). The dosage of radiation received by the patient, defined as the effective dose, was compared between groups. Results: Total mean attenuationdata for the pulmonary arteries have shown to be substantially greater in group-B compared to group-A (39110.4HU vs. 335.97.9HU, P=0.001). Moreover, total dose length product (DLP) values were substantially lower in group-B (934.9 mGy.cm vs. 384.443 mGy.cm, P=0.001). While effective dose values have shown to be significantly lower in group-B (2.90.3 mSv vs. 13.21.8 mSv, P 0.001). Conclusion: Low-kilovoltage technique and low quantity of iodinated contrast are useful in conducting (CTPA) with high accuracy in detection of pulmonary thromboembolism. https://jkmc.uobaghdad.edu.iq/index.php/MEDICAL/article/view/808pulmonary thromboembolismcomputed tomography for pulmonary angiographycontrast media |
| spellingShingle | Shaymaa Khalid Abdul-Qader Atheer Adnan Fadhil Comparative study on Various Tube Voltages and Contrast Media Doses in CT Pulmonary Angiography to detect Pulmonary Thromboembolism مجله كليه طب الكندي pulmonary thromboembolism computed tomography for pulmonary angiography contrast media |
| title | Comparative study on Various Tube Voltages and Contrast Media Doses in CT Pulmonary Angiography to detect Pulmonary Thromboembolism |
| title_full | Comparative study on Various Tube Voltages and Contrast Media Doses in CT Pulmonary Angiography to detect Pulmonary Thromboembolism |
| title_fullStr | Comparative study on Various Tube Voltages and Contrast Media Doses in CT Pulmonary Angiography to detect Pulmonary Thromboembolism |
| title_full_unstemmed | Comparative study on Various Tube Voltages and Contrast Media Doses in CT Pulmonary Angiography to detect Pulmonary Thromboembolism |
| title_short | Comparative study on Various Tube Voltages and Contrast Media Doses in CT Pulmonary Angiography to detect Pulmonary Thromboembolism |
| title_sort | comparative study on various tube voltages and contrast media doses in ct pulmonary angiography to detect pulmonary thromboembolism |
| topic | pulmonary thromboembolism computed tomography for pulmonary angiography contrast media |
| url | https://jkmc.uobaghdad.edu.iq/index.php/MEDICAL/article/view/808 |
| work_keys_str_mv | AT shaymaakhalidabdulqader comparativestudyonvarioustubevoltagesandcontrastmediadosesinctpulmonaryangiographytodetectpulmonarythromboembolism AT atheeradnanfadhil comparativestudyonvarioustubevoltagesandcontrastmediadosesinctpulmonaryangiographytodetectpulmonarythromboembolism |