TY - JOUR T1 - Comparison of Computed Tomography Dose İndices for Single Energy and Fast Kilovoltage Switching Dual Energy Abdominal Computed Tomographies TT - Tek Enerji ve Hızlı Voltaj Değişimli Çift Enerji Abdomen Bilgisayarlı Tomografilerine Ait Bilgisayarlı Tomografi Doz İndekslerinin Karşılaştırılması AU - Topcuoğlu, Osman Melih PY - 2018 DA - March DO - 10.31832/smj.380347 JF - Sakarya Tıp Dergisi PB - Sakarya Üniversitesi WT - DergiPark SN - 2146-409X SP - 41 EP - 45 VL - 8 IS - 1 LA - en AB - Objective: To investigate the computedtomography dose index (CTDI) of the single source fast kilovoltage-switching dualenergy CT (SS FKS-DECT) of the abdomen compared to conventional single source singleenergy (SSSE) CT.Materials and Methods: Inthis prospective study, the mean CTDI of the SS FKS-DECT of the abdomenobtained from 73 patients (32 women and 41 men) with a mean age of 52±15.7years, compared to the CTDI of the conventional SSSE CT. Body mass index (BMI)of all patients and CTDI of all scans were noted. Two-tailed student t test wasused for statistical analysis. P value of <0.05 was considered as statisticallysignificant. Results: The mean BMI was24.2±7.6 and the mean CTDI for the FKS-DECT and SECT were 14.6±2.5 mGy and12.5±7.2 mGy, respectively. The difference between the CTDI values of bothacquisitions were statistically significant (p=0.02). The mean CTDI of the FKS-DECTof the abdomen was 14.4% higher than those for the SECT. Conclusion: The mean CTDI ofthe SS FKS-DE abdomen CT was 14.4% higher than those of the SS SE abdomen CT. KW - Dual energy KW - Abdominal CT KW - CT KW - Dual energy CT N2 - Amaç: Tek kaynaklı tekenerji (TK TE) ve tek kaynaklı hızlı voltaj değişimli çift enerji (TK HVD-ÇE)abdomen bilgisayarlı tomografilerine (BT) ait BT doz indekslerini (BTDİ)karşılaştırmak.Gereç ve Yöntemler: Buprospektif çalışmada, yaş ortalaması 52±15,7 yıl olan 73 hastadan (32 Kadın ve41 Erkek) elde olunmuş HVD-ÇE abdomen BT’lere ait ortalama BTDİ, TE abdomenBT’lere ait ortalama BTDİ’ler ile karşılaştırıldı. Tüm hastaların vücut kitleindeksleri (VKİ) ve BT taramalarına ait BTDİ’leri kaydedildi. İstatistikselanaliz için örneklem t testi kullanıldı. P değeri <0.05 istatistiksel olarakanlamlı kabul edildi.Bulgular: Ortalama VKİ24.2±7.6 ve HVD-ÇEBT ile TEBT’lere ait ortalama BTDİ değerleri sırasıyla14.6±2.5 mGy ve 12.5±7.2 mGy idi. Her iki teknik ile elde olunan ortalamaBTDİ’ler arasındaki fark anlamlıydı (p=0.02). HVD-ÇE abdomen BT’ye ait ortalamaCTDİ, TE abdomen BT’ye göre %14.4 daha fazla idi. Sonuç: HVD-ÇE abdomen BT’yeait ortalama CTDİ, TE abdomen BT’ye göre %14.4 daha fazla idi. CR - 1. Thomas C, Krauss B, Ketelsen D, et al. Differentiation of urinary calculi with dual energy CT: effect of spectral shaping by high energy tin filtration. Investigative radiology 2010; 45:393-398 CR - 2. Graser A, Johnson TR, Chandarana H and Macari M. Dual energy CT: preliminary observations and potential clinical applications in the abdomen. European radiology 2009; 19:13-23 CR - 3. Schoepf UJ and Colletti PM. New dimensions in imaging: the awakening of dual-energy CT. AJR American journal of roentgenology 2012; 199:S1-2 CR - 4. Flohr TG, McCollough CH, Bruder H, et al. First performance evaluation of a dual-source CT (DSCT) system. European radiology 2006; 16:256-268 CR - 5. Agrawal MD, Pinho DF, Kulkarni NM, Hahn PF, Guimaraes AR and Sahani DV. Oncologic applications of dual-energy CT in the abdomen. Radiographics : a review publication of the Radiological Society of North America, Inc 2014; 34:589-612 CR - 6. Uhrig M, Simons D, Kachelriess M, Pisana F, Kuchenbecker S and Schlemmer HP. Advanced abdominal imaging with dual energy CT is feasible without increasing radiation dose. Cancer imaging : the official publication of the International Cancer Imaging Society 2016; 16:15 CR - 7. Purysko AS, Primak AN, Baker ME, et al. Comparison of radiation dose and image quality from single-energy and dual-energy CT examinations in the same patients screened for hepatocellular carcinoma. Clinical radiology 2014; 69:e538-544 CR - 8. Ho LM, Yoshizumi TT, Hurwitz LM, et al. Dual energy versus single energy MDCT: measurement of radiation dose using adult abdominal imaging protocols. Academic radiology 2009; 16:1400-1407 CR - 9. Li B, Yadava G and Hsieh J. Quantification of head and body CTDI(VOL) of dual-energy x-ray CT with fast-kVp switching. Medical physics 2011; 38:2595-2601 CR - 10. Lin XZ, Wu ZY, Tao R, et al. Dual energy spectral CT imaging of insulinoma-Value in preoperative diagnosis compared with conventional multi-detector CT. European journal of radiology 2012; 81:2487-2494 UR - https://doi.org/10.31832/smj.380347 L1 - https://dergipark.org.tr/tr/download/article-file/447143 ER -