Tek Enerji ve Hızlı Voltaj Değişimli Çift Enerji Abdomen Bilgisayarlı Tomografilerine Ait Bilgisayarlı Tomografi Doz İndekslerinin Karşılaştırılması
Öz
Amaç: Tek kaynaklı tek
enerji (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: Bu
prospektif çalışmada, yaş ortalaması 52±15,7 yıl olan 73 hastadan (32 Kadın ve
41 Erkek) elde olunmuş HVD-ÇE abdomen BT’lere ait ortalama BTDİ, TE abdomen
BT’lere ait ortalama BTDİ’ler ile karşılaştırıldı. Tüm hastaların vücut kitle
indeksleri (VKİ) ve BT taramalarına ait BTDİ’leri kaydedildi. İstatistiksel
analiz için örneklem t testi kullanıldı. P değeri <0.05 istatistiksel olarak
anlamlı kabul edildi.
Bulgular: Ortalama VKİ
24.2±7.6 ve HVD-ÇEBT ile TEBT’lere ait ortalama BTDİ değerleri sırasıyla
14.6±2.5 mGy ve 12.5±7.2 mGy idi. Her iki teknik ile elde olunan ortalama
BTDİ’ler arasındaki fark anlamlıydı (p=0.02). HVD-ÇE abdomen BT’ye ait ortalama
CTDİ, TE abdomen BT’ye göre %14.4 daha fazla idi.
Sonuç: HVD-ÇE abdomen BT’ye
ait ortalama CTDİ, TE abdomen BT’ye göre %14.4 daha fazla idi.
Anahtar Kelimeler
Kaynakça
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
Comparison of Computed Tomography Dose İndices for Single Energy and Fast Kilovoltage Switching Dual Energy Abdominal Computed Tomographies
Öz
Objective: To investigate the computed
tomography dose index (CTDI) of the single source fast kilovoltage-switching dual
energy CT (SS FKS-DECT) of the abdomen compared to conventional single source single
energy (SSSE) CT.
Materials and Methods: In
this prospective study, the mean CTDI of the SS FKS-DECT of the abdomen
obtained from 73 patients (32 women and 41 men) with a mean age of 52±15.7
years, 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 was
used for statistical analysis. P value of <0.05 was considered as statistically
significant.
Results: The mean BMI was
24.2±7.6 and the mean CTDI for the FKS-DECT and SECT were 14.6±2.5 mGy and
12.5±7.2 mGy, respectively. The difference between the CTDI values of both
acquisitions were statistically significant (p=0.02). The mean CTDI of the FKS-DECT
of the abdomen was 14.4% higher than those for the SECT.
Conclusion: The mean CTDI of
the SS FKS-DE abdomen CT was 14.4% higher than those of the SS SE abdomen CT.
Anahtar Kelimeler
Kaynakça
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
Ayrıntılar
| Birincil Dil | İngilizce |
|---|---|
| Konular | Sağlık Kurumları Yönetimi |
| Bölüm | Makaleler |
| Yazarlar | |
| Yayımlanma Tarihi | 26 Mart 2018 |
| Gönderilme Tarihi | 17 Ocak 2018 |
| Yayımlandığı Sayı | Yıl 2018 Cilt: 8 Sayı: 1 |
SMJ'de yayınlanan makaleler, Creative Commons Atıf-GayriTicari 4.0 Uluslararası Lisansı kapsamında lisanslanır