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Abdominal Radiology
Erschienen in: Abdominal Radiology 1/2013

01.02.2013

Dual-energy CT of the urinary tract

verfasst von: Ravi K. Kaza, Joel F. Platt, Alec J. Megibow

Erschienen in: Abdominal Radiology | Ausgabe 1/2013

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Abstract

With the ability to provide structural- and material-specific information with single phase of image acquisition, dual-energy CT has several useful applications in urinary tract imaging such as evaluation of renal mass, CT urography, and characterization of urinary calculi. Although the underlying principle of dual-energy scanning is similar, there are several important differences in the currently available dual-energy scanners and the image processing algorithms used for these scanners. Knowledge of the principle of dual-energy data acquisition and image processing is essential to understand the advantages and limitations of dual-energy CT in urinary tract imaging.
Literatur
1.
Alvarez RE, Macovski A (1976) Energy-selective reconstructions in X-ray computerized tomography. Phys Med Biol 21(5):733–744PubMedCrossRef
2.
Hounsfield GN (1973) Computerized transverse axial scanning (tomography). 1. Description of system. Br J Radiol 46(552):1016–1022PubMedCrossRef
3.
Kalender WA, et al. (1986) Evaluation of a prototype dual-energy computed tomographic apparatus. I. Phantom studies. Med Phys 13(3):334–339PubMedCrossRef
4.
Fletcher JG, et al. (2009) Dual-energy and dual-source CT: is there a role in the abdomen and pelvis? Radiol Clin N Am 47(1):41–57PubMedCrossRef
5.
Johnson TR, et al. (2007) Material differentiation by dual energy CT: initial experience. Eur Radiol 17(6):1510–1517PubMedCrossRef
6.
Brown CL, et al. (2009) Dual-energy CT iodine overlay technique for characterization of renal masses as cyst or solid: a phantom feasibility study. Eur Radiol 19(5):1289–1295PubMedCrossRef
7.
Graser A, et al. (2009) Dual-energy CT in patients suspected of having renal masses: can virtual nonenhanced images replace true nonenhanced images? Radiology 252(2):433–440PubMedCrossRef
8.
Primak AN, et al. (2007) Noninvasive differentiation of uric acid versus non-uric acid kidney stones using dual-energy CT. Acad Radiol 14(12):1441–1447PubMedCrossRef
9.
Stolzmann P, et al. (2009) In vivo identification of uric acid stones with dual-energy CT: diagnostic performance evaluation in patients. Abdom Imaging 35:629–635PubMedCrossRef
10.
Stolzmann P, et al. (2010) Characterization of urinary stones with dual-energy CT: improved differentiation using a tin filter. Investig Radiol 45(1):1–6CrossRef
11.
Takahashi N, et al. (2010) Detectability of urinary stones on virtual nonenhanced images generated at pyelographic-phase dual-energy CT. Radiology 256(1):184–190PubMedCrossRef
12.
Graser A et al. (2010) Single-phase dual-energy CT allows for characterization of renal masses as benign or malignant. Investig Radiol 45(7):399-405
13.
Karlo C, et al. (2011) Dual-energy CT with tin filter technology for the discrimination of renal lesion proxies containing blood, protein, and contrast-agent. An experimental phantom study. Eur Radiol 21(2):385–392PubMedCrossRef
14.
Park J, et al. (2012) Dual-energy computed tomography applications in uroradiology. Curr Urol Rep 13(1):55–62PubMedCrossRef
15.
Silva AC, et al. (2011) Dual-energy (spectral) CT: applications in abdominal imaging. Radiographics 31(4):1031–1046 (discussion 1047–50)PubMedCrossRef
16.
Zhang D, Li X, Liu B (2011) Objective characterization of GE discovery CT750 HD scanner: gemstone spectral imaging mode. Med Phys 38(3):1178–1188PubMedCrossRef
17.
Li B, Yadava G, Hsieh J (2011) Quantification of head and body CTDI(VOL) of dual-energy x-ray CT with fast-kVp switching. Med Phys 38(5):2595–2601
18.
Hidas G, et al. (2010) Determination of renal stone composition with dual-energy CT: in vivo analysis and comparison with X-ray diffraction. Radiology 257(2):394–401PubMedCrossRef
19.
Vrtiska TJ, et al. (2010) Genitourinary applications of dual-energy CT. AJR Am J Roentgenol 194(6):1434–1442PubMedCrossRef
20.
Zou YU, Silver MD (2008) Analysis of fast kV-switching in dual energy CT using a pre-reconstruction decomposition technique. In: Hsieh J, Samei E (eds) Proceedings of SPIE: Medical Imaging, vol 6913, pp 691313-1–12
21.
Goodsitt MM, Christodoulou EG, Larson SC (2011) Accuracies of the synthesized monochromatic CT numbers and effective atomic numbers obtained with a rapid kVp switching dual energy CT scanner. Med Phys 38(4):2222–2232PubMedCrossRef
22.
Matsumoto K, et al. (2011) Virtual monochromatic spectral imaging with fast kilovoltage switching: improved image quality as compared with that obtained with conventional 120-kVp CT. Radiology 259(1):257–262PubMedCrossRef
23.
Maturen KE, et al. (2012) “Sweet spot” for endoleak detection: optimizing contrast to noise using low keV reconstructions from fast-switch kVp dual-energy CT. J Comput Assist Tomogr 36(1):83–87PubMedCrossRef
24.
Graser A, et al. (2009) Dual energy CT: preliminary observations and potential clinical applications in the abdomen. Eur Radiol 19(1):13–23PubMedCrossRef
25.
Maturen KE, et al. (2011) Aortic endograft surveillance: use of fast-switch kVp dual-energy computed tomography with virtual noncontrast imaging. J Comput Assist Tomogr 35(6):742–746PubMedCrossRef
26.
Neville AM, et al. (2011) Detection of renal lesion enhancement with dual-energy multidetector CT. Radiology 259(1):173–183PubMedCrossRef
27.
Kaza RK, et al. (2011) Distinguishing enhancing from nonenhancing renal lesions with fast kilovoltage-switching dual-energy CT. AJR Am J Roentgenol 197(6):1375–1381PubMedCrossRef
28.
Mendonca PRS et al. (2010) Multi-material decomposition of spectral CT images. In: Proceedings of SPIE, pp 76221W–76221W-9
29.
Chandarana H, et al. (2011) Iodine quantification with dual-energy CT: phantom study and preliminary experience with renal masses. AJR Am J Roentgenol 196(6):W693–W700PubMedCrossRef
30.
Israel GM, Bosniak MA (2005) How I do it: evaluating renal masses. Radiology 236(2):441–450PubMedCrossRef
31.
Miller CM, et al. (2011) Effect of organ enhancement and habitus on estimation of unenhanced attenuation at contrast-enhanced dual-energy MDCT: concepts for individualized and organ-specific spectral iodine subtraction strategies. AJR Am J Roentgenol 196(5):W558–W564PubMedCrossRef
32.
Zech CJ, Arndt N, Becker CR, Staehler M, Reiser MF, Johnson TR (2010) Dual-Energy CT for Detection of Malignancy in Patients with Polycystic Kidney Disease. Presented at Radiological Society of North America 2011 Scientific Assembly and Annual Meeting, November 28–December 3, Chicago, IL
33.
Dillman JR, Caoili EM, Cohan RH (2007) Multi-detector CT urography: a one-stop renal and urinary tract imaging modality. Abdom Imaging 32(4):519–529PubMedCrossRef
34.
Takahashi N, et al. (2008) Dual-energy CT iodine-subtraction virtual unenhanced technique to detect urinary stones in an iodine-filled collecting system: a phantom study. AJR Am J Roentgenol 190(5):1169–1173PubMedCrossRef
35.
Moon JW, Park BK, Kim CK, Park SY (2011) Evaluation of virtual unenhanced CT obtained from dualenergy CT urography for detecting urinary stones. Br J Radiol [Epub ahead of print]
36.
Mangold S, Fenchel MC, Vuust M, Claussen CD, Heuschmid M, Krauss B, Ketelsen D, Tsiflikas I (2010) Virtual Nonenhanced Dual-Energy CT Urography with Tin Filter Technology: Detection of Urinary Calculi in Vivo in Comparison to True Nonenhanced CT Urography. Presented at Radiological Society of North America 2011 Scientific Assembly and Annual Meeting, November 28–December 3, Chicago, IL
37.
Wells SA, Caoili EM, Cohan RH, Kaza RK, Ellis JH, Platt JF (2010) The role of dual-energy CT (DECT) in CT urography (CTU). Presented at Radiological Society of North America 2010 Scientific Assembly and Annual Meeting; November 28–December 3, Chicago, IL
38.
Wang J, Qu M, Leng S, McCollough CH (2010) Differentiation of uric acid versus non-uric acid kidney stones in the presence of iodine using dual-energy CT. In: Samei E, Pelc NJ (eds) Proceedings of SPIE: Medical Imaging, vol 7622, pp 76223O–76223O-9
39.
Kambadakone AR, et al. (2010) New and evolving concepts in the imaging and management of urolithiasis: urologists’ perspective. Radiographics 30(3):603–623PubMedCrossRef
40.
Eliahou R, et al. (2010) Determination of renal stone composition with dual-energy computed tomography: an emerging application. Semin Ultrasound CT MR 31(4):315–320PubMedCrossRef
41.
Motley G, et al. (2001) Hounsfield unit density in the determination of urinary stone composition. Urology 58(2):170–173PubMedCrossRef
42.
Manglaviti G, et al. (2011) In vivo evaluation of the chemical composition of urinary stones using dual-energy CT. AJR Am J Roentgenol 197(1):W76–W83PubMedCrossRef
43.
Qu M, Giselle J, Ramirez Giraldo J, Vrtiska TJ, Lieske JC, McCollough CH, Krambeck A, Liu Y (2011) In vivo discrimination of nonuric acid kidney stone types. Presented at Radiological Society of North America 2011 Scientific Assembly and Annual Meeting, November 28–December 3, Chicago, IL
44.
Qu M, et al. (2011) Dual-energy dual-source CT with additional spectral filtration can improve the differentiation of non-uric acid renal stones: an ex vivo phantom study. AJR Am J Roentgenol 196(6):1279–1287PubMedCrossRef
45.
Joshi M, Langan D, Sahani DS, et al. (2010) Effective atomic number accuracy for kidney stone characterization using spectral CT. In: Samei E, Pelc NJ (eds) Proceedings of SPIE: Medical Imaging 2010, vol 7622, pp 76223K-1-12
46.
Kulkarni N, Pinho D, Desai GS, Eisner BH, Doyle M, Sahani DV (2011) Kidney stone detection and characterization on dual-energy CT under annual background radiation dose. Presented at Radiological Society of North America 2011 Scientific Assembly and Annual Meeting, November 28–December 3, Chicago, IL
47.
Thomas C, et al. (2009) Dual-energy CT for the characterization of urinary calculi: in vitro and in vivo evaluation of a low-dose scanning protocol. Eur Radiol 19(6):1553–1559PubMedCrossRef
48.
Yu L, et al. (2009) Image quality optimization and evaluation of linearly mixed images in dual-source, dual-energy CT. Med Phys 36(3):1019–1024PubMedCrossRef
49.
Yadava GK, Chandra N, Hsieh J (2011) Relative dose in dual energy fast-kVp switching and conventional kVp imaging: spatial frequency dependent noise characteristics and low contrast imaging. In: Pelc NJ, Samei E, Nishikawa RM (eds) Proceedings of SPIE: Medical Imaging, vol 7961, pp 79613R-1–7
50.
Ng J, Chandarana H, Megibow AJ (2012) Decreased radiation dose in abdominal-pelvic MDCT using dual source dual energy imaging: quantitative comparison in 84 patients. To be presented at 2012 American Roentegen Ray Society Annual Meeting, Vancouver, CA
51.
Hara AK, et al. (2009) Iterative reconstruction technique for reducing body radiation dose at CT: feasibility study. AJR Am J Roentgenol 193(3):764–771PubMedCrossRef
52.
Schindera ST, et al. (2011) Iterative reconstruction algorithm for abdominal multidetector CT at different tube voltages: assessment of diagnostic accuracy, image quality, and radiation dose in a phantom study. Radiology 260(2):454–462PubMedCrossRef
53.
Leng S, et al. (2011) Noise reduction in spectral CT: reducing dose and breaking the trade-off between image noise and energy bin selection. Med Phys 38(9):4946–4957PubMedCrossRef
54.
Szczykutowicz TP, Chen G-H (2011) Radiation dose reduction in dual-energy CT using PICCS reconstruction. Presented at Radiological Society of North America 2011 Scientific Assembly and Annual Meeting; November 28–December 3, Chicago, IL
Metadaten
Titel
Dual-energy CT of the urinary tract
verfasst von
Ravi K. Kaza
Joel F. Platt
Alec J. Megibow
Publikationsdatum
01.02.2013
Verlag
Springer-Verlag
Erschienen in
Abdominal Radiology / Ausgabe 1/2013
Print ISSN: 2366-004X
Elektronische ISSN: 2366-0058
DOI
https://doi.org/10.1007/s00261-012-9901-7

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