Korean Journal of Radiology

The Korean Society of Radiology (대한영상의학회)
권호 표지
DOI QR코드

DOI QR Code

Comparison of Image Quality of Shoulder CT Arthrography Conducted Using 120 kVp and 140 kVp Protocols

  • Ahn, Se Jin (Department of Radiology, Seoul National University College of Medicine) ;
  • Hong, Sung Hwan (Department of Radiology, Seoul National University College of Medicine) ;
  • Chai, Jee Won (Department of Radiology, Boramae Medical Center) ;
  • Choi, Ja-Young (Department of Radiology, Seoul National University College of Medicine) ;
  • Yoo, Hye Jin (Department of Radiology, Seoul National University College of Medicine) ;
  • Kim, Sae Hoon (Department of Orthopedic Surgery, Seoul National University College of Medicine) ;
  • Kang, Heung Sik (Department of Radiology, Seoul National University College of Medicine)
  • Received : 2014.02.03
  • Accepted : 2014.07.23
  • Published : 2014.12.01
⟨ Previous Next ⟩

Abstract

Objective: To compare the image quality of shoulder CT arthrography performed using 120 kVp and 140 kVp protocols. Materials and Methods: Fifty-four CT examinations were prospectively included. CT scans were performed on each patient at 120 kVp and 140 kVp; other scanning parameters were kept constant. Image qualities were qualitatively and quantitatively compared with respect to noise, contrast, and diagnostic acceptability. Diagnostic acceptabilities were graded using a one to five scale as follows: 1, suboptimal; 2, below average; 3, acceptable; 4, above average; and 5, superior. Radiation doses were also compared. Results: Contrast was better at 120 kVp, but noise was greater. No significant differences were observed between the 120 kVp and 140 kVp protocols in terms of diagnostic acceptability, signal-to-noise ratio, or contrast-to-noise ratio. Lowering tube voltage from 140 kVp to 120 kVp reduced the radiation dose by 33%. Conclusion: The use of 120 kVp during shoulder CT arthrography reduces radiation dose versus 140 kVp without significant loss of image quality.

Keywords

References

  1. Lecouvet FE, Simoni P, Koutaïssoff S, Vande Berg BC, Malghem J, Dubuc JE. Multidetector spiral CT arthrography of the shoulder. Clinical applications and limits, with MR arthrography and arthroscopic correlations. Eur J Radiol 2008;68:120-136 https://doi.org/10.1016/j.ejrad.2008.02.025
  2. Oh JH, Kim JY, Choi JA, Kim WS. Effectiveness of multidetector computed tomography arthrography for the diagnosis of shoulder pathology: comparison with magnetic resonance imaging with arthroscopic correlation. J Shoulder Elbow Surg 2010;19:14-20 https://doi.org/10.1016/j.jse.2009.04.012
  3. Kim YJ, Choi JA, Oh JH, Hwang SI, Hong SH, Kang HS. Superior labral anteroposterior tears: accuracy and interobserver reliability of multidetector CT arthrography for diagnosis. Radiology 2011;260:207-215 https://doi.org/10.1148/radiol.11101176
  4. De Filippo M, Araoz PA, Pogliacomi F, Castagna A, Petriccioli D, Sverzellati N, et al. Recurrent superior labral anterior-to-posterior tears after surgery: detection and grading with CT arthrography. Radiology 2009;252:781-788 https://doi.org/10.1148/radiol.2531081586
  5. Choi JY, Kim SH, Yoo HJ, Shin SH, Oh JH, Baek GH, et al. Superior labral anterior-to-posterior lesions: comparison of external rotation and active supination CT arthrography with neutral CT arthrography. Radiology 2012;263:199-205 https://doi.org/10.1148/radiol.12110066
  6. Lecouvet FE, Dorzée B, Dubuc JE, Vande Berg BC, Jamart J, Malghem J. Cartilage lesions of the glenohumeral joint: diagnostic effectiveness of multidetector spiral CT arthrography and comparison with arthroscopy. Eur Radiol 2007;17:1763-1771 https://doi.org/10.1007/s00330-006-0523-8
  7. De Filippo M, Bertellini A, Sverzellati N, Pogliacomi F, Costantino C, Vitale M, et al. Multidetector computed tomography arthrography of the shoulder: diagnostic accuracy and indications. Acta Radiol 2008;49:540-549 https://doi.org/10.1080/02841850801935559
  8. Omoumi P, Bafort AC, Dubuc JE, Malghem J, Vande Berg BC, Lecouvet FE. Evaluation of rotator cuff tendon tears: comparison of multidetector CT arthrography and 1.5-T MR arthrography. Radiology 2012;264:812-822 https://doi.org/10.1148/radiol.12112062
  9. Cochet H, Couderc S, Pelé E, Amoretti N, Moreau-Durieux MH, Hauger O. Rotator cuff tears: should abduction and external rotation (ABER) positioning be performed before image acquisition? A CT arthrography study. Eur Radiol 2010;20:1234-1241 https://doi.org/10.1007/s00330-009-1635-8
  10. Ambrosino MM, Genieser NB, Roche KJ, Kaul A, Lawrence RM. Feasibility of high-resolution, low-dose chest CT in evaluating the pediatric chest. Pediatr Radiol 1994;24:6-10 https://doi.org/10.1007/BF02017649
  11. Sigal-Cinqualbre AB, Hennequin R, Abada HT, Chen X, Paul JF. Low-kilovoltage multi-detector row chest CT in adults: feasibility and effect on image quality and iodine dose. Radiology 2004;231:169-174 https://doi.org/10.1148/radiol.2311030191
  12. Heyer CM, Mohr PS, Lemburg SP, Peters SA, Nicolas V. Image quality and radiation exposure at pulmonary CT angiography with 100- or 120-kVp protocol: prospective randomized study. Radiology 2007;245:577-583 https://doi.org/10.1148/radiol.2452061919
  13. Wintersperger B, Jakobs T, Herzog P, Schaller S, Nikolaou K, Suess C, et al. Aorto-iliac multidetector-row CT angiography with low kV settings: improved vessel enhancement and simultaneous reduction of radiation dose. Eur Radiol 2005;15:334-341 https://doi.org/10.1007/s00330-004-2575-y
  14. Feuchtner GM, Jodocy D, Klauser A, Haberfellner B, Aglan I, Spoeck A, et al. Radiation dose reduction by using 100-kV tube voltage in cardiac 64-slice computed tomography: a comparative study. Eur J Radiol 2010;75:e51-e56 https://doi.org/10.1016/j.ejrad.2009.07.012
  15. Park EA, Lee W, Kang JH, Yin YH, Chung JW, Park JH. The image quality and radiation dose of 100-kVp versus 120-kVp ECG-gated 16-slice CT coronary angiography. Korean J Radiol 2009;10:235-243 https://doi.org/10.3348/kjr.2009.10.3.235
  16. Abada HT, Larchez C, Daoud B, Sigal-Cinqualbre A, Paul JF. MDCT of the coronary arteries: feasibility of low-dose CT with ECG-pulsed tube current modulation to reduce radiation dose. AJR Am J Roentgenol 2006;186(6 Suppl 2):S387-S390 https://doi.org/10.2214/AJR.05.0216
  17. Choi JY, Kang HS, Hong SH, Lee JW, Kim NR, Jun WS, et al. Optimization of the contrast mixture ratio for simultaneous direct MR and CT arthrography: an in vitro study. Korean J Radiol 2008;9:520-525 https://doi.org/10.3348/kjr.2008.9.6.520
  18. Waldt S, Metz S, Burkart A, Mueller D, Bruegel M, Rummeny EJ, et al. Variants of the superior labrum and labro-bicipital complex: a comparative study of shoulder specimens using MR arthrography, multi-slice CT arthrography and anatomical dissection. Eur Radiol 2006;16:451-458 https://doi.org/10.1007/s00330-005-2864-0
  19. De Maeseneer M, Boulet C, Pouliart N, Kichouh M, Buls N, Verhelle F, et al. Assessment of the long head of the biceps tendon of the shoulder with 3T magnetic resonance arthrography and CT arthrography. Eur J Radiol 2012;81:934-939 https://doi.org/10.1016/j.ejrad.2011.01.121
  20. Binkert CA, Verdun FR, Zanetti M, Pfirrmann CW, Hodler J. CT arthrography of the glenohumeral joint: CT fluoroscopy versus conventional CT and fluoroscopy--comparison of image-guidance techniques. Radiology 2003;229:153-158 https://doi.org/10.1148/radiol.2291020314
  21. Lee GY, Choi JA, Oh JH, Choi JY, Hong SH, Kang HS. Posteroinferior labral cleft at direct CT arthrography of the shoulder by using multidetector CT: is this a normal variant? Radiology 2009;253:765-770 https://doi.org/10.1148/radiol.2533081997
  22. von Falck C, Galanski M, Shin HO. Informatics in radiology: sliding-thin-slab averaging for improved depiction of low-contrast lesions with radiation dose savings at thin-section CT. Radiographics 2010;30:317-326 https://doi.org/10.1148/rg.302096007
  23. Joo SM, Lee KH, Kim YH, Kim SY, Kim K, Kim KJ, et al. Detection of the normal appendix with low-dose unenhanced CT: use of the sliding slab averaging technique. Radiology 2009;251:780-787 https://doi.org/10.1148/radiol.2513081617
  24. Lee KH, Hong H, Hahn S, Kim B, Kim KJ, Kim YH. Summation or axial slab average intensity projection of abdominal thin-section CT datasets: can they substitute for the primary reconstruction from raw projection data? J Digit Imaging 2008;21:422-432 https://doi.org/10.1007/s10278-007-9067-y

Cited by

  1. Prospective Evaluation of Agreement and Accuracy in the Diagnosis of Meniscal Tears: MR Arthrography a Short Time After Injection Versus CT Arthrography After a Moderate Delay vol.207, pp.1, 2014, https://doi.org/10.2214/ajr.15.14517
  2. C-arm flat-panel CT arthrography of the shoulder: Radiation dose considerations and preliminary data on diagnostic performance vol.27, pp.2, 2014, https://doi.org/10.1007/s00330-016-4382-7
  3. Optimizing radiation dose parameters in MDCT arthrography of the shoulder: illustration of basic concepts in a cadaveric study vol.48, pp.8, 2019, https://doi.org/10.1007/s00256-019-3150-6
  4. Computed tomography arthrography of the shoulder with tin filter-based spectral shaping at 100 kV and 140 kV vol.62, pp.10, 2014, https://doi.org/10.1177/0284185120965551