Dual-energy CT quantitative parameters can improve the performance of differential diagnostics between Ameloblastomas and Odontogenic Keratocysts with solid components – A systematic review.
DOI:
https://doi.org/10.51168/sjhrafrica.v6i9.2227Keywords:
Ameloblastomas, Dual-energy computed tomography, Odontogenic keratocysts, Jaw neoplasms, Iodine quantification, CT imaging techniques, Spectral CTAbstract
Background
Technical constraints and a laborious workflow have likely led to underutilization of dual-energy CT. Clinical radiologists need a better understanding of the benefits of its benefits over single-energy CT. The fundamental idea of DECT involves acquiring data at two different X-ray energy levels to differentiate materials. Various acquisition techniques are available, including dual-tube systems, fast voltage switching, dual-layer detectors, split-filter techniques, and sequential scanning, each with its own pros and cons for clinical application. Up to 20% of cystic jaw lesions are OKCs, which are epithelial-lined cysts that are frequently linked to a nevoid basal cell carcinoma syndrome. Ameloblastomas (AMs) and odontogenic keratocysts (OKCs) are common, benign jaw lesions often discovered accidentally during routine radiographic examinations. Although benign, they can cause significant pain and tissue damage. Diagnosis typically involves clinical exams, radiography (such as panoramic X-rays, CT scans, or CBCT), and a subsequent biopsy. A key challenge is that AMs and OKCs look identical on conventional imaging, making primary differentiation by a radiologist difficult and highlighting a potential area where advanced techniques like DECT could offer improved diagnostic capabilities.
Material and Methods
Major databases such as Medline were explored through a detailed literature search, resulting in a systematic review pertaining to Dual-energy CT quantitative parameters that can improve the performance of differential diagnosis between ameloblastomas and odontogenic keratocysts with solid components.
Results
Ten original research scientific articles, dated between 2020 and 2024, about the mentioned topic were highlighted.
Conclusions
The ability to distinguish ameloblastomas from OKCs with solid components is much enhanced when DECT quantitative parameters are combined with traditional imaging features, providing a possible image-based diagnostic tool for clinical diagnosis. Detailed information regarding the DECT quantitative parameters can improve the performance of differential diagnosis between AMs and OKC, as discussed in this systematic review.
References
Wippold FJ. Head and neck imaging: the role of CT and MRI. Journal of Magnetic Resonance Imaging: An Official Journal of the International Society for Magnetic Resonance in Medicine. 2007 Mar;25(3):453-65. doi: 10.1002/jmri.20838. https://doi.org/10.1002/jmri.20838
Gnannt R, Winklehner A, Goetti R, Schmidt B, Kollias S, Alkadhi H. Low kilovoltage CT of the neck with 70 kVp: comparison with a standard protocol. American journal of neuroradiology. 2012 Jun 1;33(6):1014-9. doi: 10.3174/ajnr.A2910. https://doi.org/10.3174/ajnr.A2910
Holmes III DR, Fletcher JG, Apel A, Huprich JE, Siddiki H, Hough DM, Schmidt B, Flohr TG, Robb R, McCollough C, Wittmer M. Evaluation of non-linear blending in dual-energy computed tomography. European journal of radiology. 2008 Dec 1;68(3):409-13. doi: 10.1016/j.ejrad.2008.09.017 https://doi.org/10.1016/j.ejrad.2008.09.017
Johnson TR. Dual-energy CT: general principles. American Journal of Roentgenology. 2012 Nov;199(5_supplement):S3-8. doi: 10.2214/AJR.12.9116. https://doi.org/10.2214/AJR.12.9116
Curry TS, Dowdey JE, Murray RC. Christensen's physics of diagnostic radiology. Lippincott Williams & Wilkins; 1990. (doi: not available)
Alvarez RE, Macovski A. Energy-selective reconstructions in X-ray computerised tomography. Physics in Medicine & Biology. 1976 Sep 1;21(5):733. doi: 10.1088/0031 9155/21/5/002 https://doi.org/10.1088/0031-9155/21/5/002
Morhard D, Fink C, Graser A, Reiser MF, Becker C, Johnson TR. Cervical and cranial computed tomographic angiography with automated bone removal: dual energy computed tomography versus standard computed tomography. Investigative radiology. 2009 May 1;44(5):293-7. doi: 10.1097/RLI.0b013e31819b6fba. https://doi.org/10.1097/RLI.0b013e31819b6fba
Kaza RK, Platt JF, Cohan RH, Caoili EM, Al-Hawary MM, Wasnik A. Dual-energy CT with single-and dual-source scanners: current applications in evaluating the genitourinary tract. Radiographics. 2012 Mar;32(2):353-69. doi: 10.1148/rg.322115065. https://doi.org/10.1148/rg.322115065
Sommer WH, Johnson TR, Becker CR, Arnoldi E, Kramer H, Reiser MF, Nikolaou K. The value of dual-energy bone removal in maximum intensity projections of lower extremity computed tomography angiography. Investigative radiology. 2009 May 1;44(5):285-92. doi: 10.1097/RLI.0b013e31819b70ba. https://doi.org/10.1097/RLI.0b013e31819b70ba
Macovski A, Alvarez RE, Chan JH, Stonestrom JP, Zatz LM. Energy-dependent reconstruction in X-ray computerized tomography. Computers in biology and medicine. 1976 Oct 1;6(4):325-36. doi: 10.1016/0010-4825(76)90069-x. https://doi.org/10.1016/0010-4825(76)90069-X
Kalender WA, Klotz E, Suess C. Vertebral bone mineral analysis: an integrated approach with CT. Radiology. 1987 Aug;164(2):419-23. doi: 10.1148/radiology 164.2.3602380. https://doi.org/10.1148/radiology.164.2.3602380
Flohr TG, McCollough CH, Bruder H, Petersilka M, Gruber K, Süß C, Grasruck M, Stierstorfer K, Krauss B, Raupach R, Primak AN. First performance evaluation of a dual-source CT (DSCT) system. European radiology. 2006 Feb;16(2):256-68. doi: 10.1007/s00330-005-2919-2. https://doi.org/10.1007/s00330-005-2919-2
Johnson TR, Nikolaou K, Wintersperger BJ, Leber AW, von Ziegler F, Rist C, Buhmann S, Knez A, Reiser MF, Becker CR. Dual-source CT cardiac imaging: initial experience. European radiology. 2006 Jul;16(7):1409-15. doi: 10.1007/s00330-006-0298-y https://doi.org/10.1007/s00330-006-0298-y
Johnson TR, Krauss B, Sedlmair M, Grasruck M, Bruder H, Morhard D, Fink C, Weckbach S, Lenhard M, Schmidt B, Flohr T. Material differentiation by dual energy CT: initial experience. European radiology. 2007 Jun;17(6):1510-7. doi: 10.1007/s00330-006-0517-6. https://doi.org/10.1007/s00330-006-0517-6
Tatsugami F, Higaki T, Nakamura Y, Honda Y, Awai K. Dual-energy CT: minimal essentials for radiologists. Japanese journal of radiology. 2022 Jun;40(6):547-59. doi: 10.1007/s11604-021-01233-2. https://doi.org/10.1007/s11604-021-01233-2
Toia GV, Mileto A, Wang CL, Sahani DV. Quantitative dual-energy CT techniques in the abdomen. Abdominal Radiology. 2022 Sep;47(9):3003-18. doi: 10.1007/s00261-021-03266-7 https://doi.org/10.1007/s00261-021-03266-7
Murray N, Darras KE, Walstra FE, Mohammed MF, McLaughlin PD, Nicolaou S. Dual-energy CT in evaluation of the acute abdomen. Radiographics. 2019 Jan;39(1):264-86. doi: 10.1148/rg.2019180087. https://doi.org/10.1148/rg.2019180087
Graser A, Johnson TR, Hecht EM, Becker CR, Leidecker C, Staehler M, Stief CG, Hildebrandt H, Godoy MC, Finn ME, Stepansky F. Dual-energy CT in patients suspected of having renal masses: can virtual nonenhanced images replace true nonenhanced images?. Radiology. 2009 Aug;252(2):433-40. doi: 10.1148/radiol.2522080557 https://doi.org/10.1148/radiol.2522080557
Vlahos I, Godoy MC, Naidich DP. Dual-energy computed tomography imaging of the aorta. Journal of Thoracic Imaging. 2010 Nov 1;25(4):289-300. doi: 10.1097/RTI.0b013e3181dc2b4c. https://doi.org/10.1097/RTI.0b013e3181dc2b4c
Rajiah P, Parakh A, Kay F, Baruah D, Kambadakone AR, Leng S. Update on multienergy CT: physics, principles, and applications. Radiographics. 2020 Sep;40(5):1284-308. doi: 10.1148/rg.2020200038. https://doi.org/10.1148/rg.2020200038
Baliyan V, Shaqdan K, Hedgire S, Ghoshhajra B. Vascular computed tomography angiography technique and indications. Cardiovascular diagnosis and therapy. 2019 Aug;9(Suppl 1):S14. doi: 10.21037/cdt 2019.07.04 https://doi.org/10.21037/cdt
Sun H, Hou XY, Xue HD, Li XG, Jin ZY, Qian JM, Yu JC, Zhu HD. Dual-source dual-energy CT angiography with virtual non-enhanced images and iodine map for active gastrointestinal bleeding: image quality, radiation dose, and diagnostic performance. European journal of radiology. 2015 May 1;84(5):884-91. doi: 10.1016/j.ejrad.2015.01.013 https://doi.org/10.1016/j.ejrad.2015.01.013
Stolzmann P, Frauenfelder T, Pfammatter T, Peter N, Scheffel H, Lachat M, Schmidt B, Marincek B, Alkadhi H, Schertler T. Endoleaks after endovascular abdominal aortic aneurysm repair: detection with dual-energy dual-source CT. Radiology. 2008 Nov;249(2):682-91. doi: 10.1148/radiol.2483080193. https://doi.org/10.1148/radiol.2483080193
Chandarana H, Godoy MC, Vlahos I, Graser A, Babb J, Leidecker C, Macari M. Abdominal aorta: evaluation with dual-source dual-energy multidetector CT after endovascular repair of aneurysms-initial observations. Radiology. 2008 Nov;249(2):692-700. doi: 10.1148/radiol.2492080359. https://doi.org/10.1148/radiol.2492080359
Chung R, Dane B, Yeh BM, Morgan DE, Sahani DV, Kambadakone A. Dual-energy computed tomography: Technological considerations. Radiologic Clinics. 2023 Nov 1;61(6):945-61. doi: 10.1016/j.rcl.2023.05.002 https://doi.org/10.1016/j.rcl.2023.05.002
Shuman WP, Mileto A, Busey JM, Desai N, Koprowicz KM. Dual-energy CT urography with 50% reduced iodine dose versus single-energy CT urography with standard iodine dose. American Journal of Roentgenology. 2019 Jan;212(1):117-23. doi: 10.2214/AJR.18.19720. https://doi.org/10.2214/AJR.18.19720
Rotzinger DC, Si-Mohamed SA, Yerly J, Boccalini S, Becce F, Boussel L, Meuli RA, Qanadli SD, Douek PC. Reduced-iodine-dose dual-energy coronary CT angiography: qualitative and quantitative comparison between virtual monochromatic and polychromatic CT images. European radiology. 2021 Sep;31(9):7132-42. doi: 10.1007/s00330-021-07809-w. https://doi.org/10.1007/s00330-021-07809-w
Li B, Pomerleau M, Gupta A, Soto JA, Anderson SW. Accuracy of dual-energy CT virtual unenhanced and material-specific images: a phantom study. American Journal of Roentgenology. 2020 Nov;215(5):1146-54. doi: 10.2214/AJR.19.22372. https://doi.org/10.2214/AJR.19.22372
Abu-Omar A, Murray N, Ali IT, Khosa F, Barrett S, Sheikh A, Nicolaou S, O'Neill SB. The role of dual-energy CT in solid organ injury. Canadian Association of Radiologists Journal. 2024 May;75(2):417-27. doi: 10.1177/08465371231215669. https://doi.org/10.1177/08465371231215669
McCollough CH, Boedeker K, Cody D, Duan X, Flohr T, Halliburton SS, Hsieh J, Layman RR, Pelc NJ. Principles and applications of multienergy CT: Report of AAPM Task Group 291. Medical physics. 2020 Jul;47(7):e881-912. Doi: 10.1002/mp 14157. https://doi.org/10.1002/mp.14157
Lee SM, Kim SH, Ahn SJ, Kang HJ, Kang JH, Han JK. Virtual monoenergetic dual-layer, dual-energy CT enterography: optimization of keV settings and its added value for Crohn's disease. European radiology. 2018 Jun;28(6):2525-34. doi: 10.1007/s00330-017-5215-z. https://doi.org/10.1007/s00330-017-5215-z
Kalender WA, Klotz E, Kostaridou L. An algorithm for noise suppression in dual energy CT material density images. IEEE transactions on medical imaging. 1988 Sep 30;7(3):218-24. doi: 10.1109/42.7785. https://doi.org/10.1109/42.7785
Primak AN, Fletcher JG, Vrtiska TJ, Dzyubak OP, Lieske JC, Jackson ME, Williams Jr JC, McCollough CH. Noninvasive differentiation of uric acid versus non-uric acid kidney stones using dual-energy CT. Academic radiology. 2007 Dec 1;14(12):1441-7. doi: 10.1016/j.acra.2007.09.016. https://doi.org/10.1016/j.acra.2007.09.016
Goo HW, Goo JM. Dual-energy CT: new horizon in medical imaging. Korean journal of radiology. 2017;18(4):555-69. doi: 10.3348/kjr 2017.18.4.555. https://doi.org/10.3348/kjr.2017.18.4.555
Faby S, Kuchenbecker S, Sawall S, Simons D, Schlemmer HP, Lell M, Kachelrieß M. Performance of today's dual energy CT and future multi-energy CT in virtual non‐contrast imaging and in iodine quantification: a simulation study. Medical physics. 2015 Jul;42(7):4349-66. Doi: 10.1118/1.4922654. https://doi.org/10.1118/1.4922654
Lee S, Choi YN, Kim HJ. Quantitative material decomposition using spectral computed tomography with an energy-resolved photon-counting detector. Physics in Medicine & Biology. 2014 Aug 28;59(18):5457. doi: 10.1088/0031-9155/59/18/5457. https://doi.org/10.1088/0031-9155/59/18/5457
Krauss B, Grant KL, Schmidt BT, Flohr TG. The importance of spectral separation: an assessment of dual-energy spectral separation for quantitative ability and dose efficiency. Investigative radiology. 2015 Feb 1;50(2):114-8. doi: 10.1097/RLI.0000000000000109. https://doi.org/10.1097/RLI.0000000000000109
Atak H, Shikhaliev PM. Dual energy CT with photon counting and dual source systems: comparative evaluation. Physics in Medicine & Biology. 2015 Nov 5;60(23):8949. doi: 10.1088/0031 9155/60/23/8949 https://doi.org/10.1088/0031-9155/60/23/8949
Forghani R, De Man B, Gupta R. Dual-energy computed tomography: physical principles, approaches to scanning, usage, and implementation: part 1. Neuroimaging Clinics of North America. 2017 Aug 1;27(3):371-84. doi: 10.1016/j.nic.2017.03.002. https://doi.org/10.1016/j.nic.2017.03.00
So A, Nicolaou S. Spectral computed tomography: fundamental principles and recent developments. Korean journal of radiology. 2020 Sep 10;22(1):86. doi: 10.3348/kjr 2020.0144 https://doi.org/10.3348/kjr.2020.0144
Fulwadhva UP, Wortman JR, Sodickson AD. Use of dual-energy CT and iodine maps in evaluation of bowel disease. Radiographics. 2016 Mar;36(2):393-406. doi: 10.1148/rg.2016150151. https://doi.org/10.1148/rg.2016150151
Coursey CA, Nelson RC, Boll DT, Paulson EK, Ho LM, Neville AM, Marin D, Gupta RT, Schindera ST. Dual-energy multidetector CT: how does it work, what can it tell us, and when can we use it in abdominopelvic imaging?. Radiographics. 2010 Jul;30(4):1037-55. doi: 10.1148/rg.304095175. https://doi.org/10.1148/rg.304095175
Ginat DT, Gupta R. Advances in computed tomography imaging technology. Annual review of biomedical engineering. 2014 Jul 11;16(1):431-53. Doi: 10.1146/annurev-bioeng-121813-113601. https://doi.org/10.1146/annurev-bioeng-121813-113601
Ghasemi Shayan R, Oladghaffari M, Sajjadian F, Fazel Ghaziyani M. Image quality and dose comparison of single‐energy CT (SECT) and dual‐energy CT (DECT). Radiology research and practice. 2020;2020(1):1403957. doi: 10.1155/2020/1403957 https://doi.org/10.1155/2020/1403957
Tanaka R, Hayashi T, Ike M, Noto Y, Goto TK. Reduction of dark-band-like metal artifacts caused by dental implant bodies using hypothetical monoenergetic imaging after dual-energy computed tomography. Oral surgery, oral medicine, oral pathology, and oral radiology. 2013 Jun 1;115(6):833-8. doi: 10.1016/j.oooo.2013.03.014. https://doi.org/10.1016/j.oooo.2013.03.014
Stolzmann P, Winklhofer S, Schwendener N, Alkadhi H, Thali MJ, Ruder TD. Monoenergetic computed tomography reconstructions reduce beam hardening artifacts from dental restorations. Forensic science, medicine, and pathology. 2013 Sep;9(3):327-32. doi: 10.1007/s12024-013-9420-z. https://doi.org/10.1007/s12024-013-9420-z
Ai S, Qu M, Glazebrook KN, Liu Y, Rhee PC, Leng S, McCollough CH. Use of dual-energy CT and virtual non-calcium techniques to evaluate post-traumatic bone bruises in knees in the subacute setting. Skeletal radiology. 2014 Sep;43(9):1289-95. doi: 10.1007/s00256-014-1913-7. https://doi.org/10.1007/s00256-014-1913-7
Guggenberger R, Gnannt R, Hodler J, Krauss B, Wanner GA, Csuka E, Payne B, Frauenfelder T, Andreisek G, Alkadhi H. Diagnostic performance of dual-energy CT for the detection of traumatic bone marrow lesions in the ankle: comparison with MR imaging. Radiology. 2012 Jul;264(1):164-73. doi: 10.1148/radiol.12112217. https://doi.org/10.1148/radiol.12112217
Pache G, Krauss B, Strohm P, Saueressig U, Blanke P, Bulla S, Schäfer O, Helwig P, Kotter E, Langer M, Baumann T. Dual-energy CT virtual noncalcium technique: detecting posttraumatic bone marrow lesions-feasibility study. Radiology. 2010 Aug;256(2):617-24. doi: 10.1148/radiol.10091230. https://doi.org/10.1148/radiol.10091230
Fink C, Johnson TR, Michaely HJ, Morhard D, Becker C, Reiser M, Nikolaou K. Dual-energy CT angiography of the lung in patients with suspected pulmonary embolism: initial results. In RöFo-Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren 2008 Oct (Vol. 180, No. 10, pp. 879-883). © Georg Thieme Verlag KG Stuttgart• New York. doi: 10.1055/s-2008-1027724. https://doi.org/10.1055/s-2008-1027724
Soluk-Tekkeşin M, Wright JM. The World Health Organization classification of odontogenic lesions: a summary of the changes of the 2017 (4th) edition. Turk Patoloji Derg. 2018 Jan 1;34(1):1-8. doi: 10.5146/tjpath 2017.01410.
Dunfee BL, Sakai O, Pistey R, Gohel A. Radiologic and pathologic characteristics of benign and malignant lesions of the mandible. Radiographics. 2006 Nov;26(6):1751-68. doi: 10.1148/rg.266055189. https://doi.org/10.1148/rg.266055189
McCollough CH, Leng S, Yu L, Fletcher JG. Dual-and multi-energy CT: principles, technical approaches, and clinical applications. Radiology. 2015 Sep;276(3):637-53. doi: 10.1148/radiol.2015142631 https://doi.org/10.1148/radiol.2015142631
Roele ED, Timmer VC, Vaassen LA, van Kroonenburgh AM, Postma AA. Dual-energy CT in head and neck imaging. Current radiology reports. 2017 Mar 29;5(5):19. doi: 10.1007/s40134-017-0213-0 https://doi.org/10.1007/s40134-017-0213-0
Odedra D, Narayanasamy S, Sabongui S, Priya S, Krishna S, Sheikh A. Dual energy CT physics primer for the emergency radiologist. Frontiers in radiology. 2022 Feb 24;2:820430. doi: 10.3389/fradi.2022.820430 https://doi.org/10.3389/fradi.2022.820430
Tawfik AM, Razek AA, Kerl JM, Nour-Eldin NE, Bauer R, Vogl TJ. Comparison of dual-energy CT-derived iodine content and iodine overlay of normal, inflammatory, and metastatic squamous cell carcinoma cervical lymph nodes. European radiology. 2014 Mar;24(3):574-80. doi: 10.1007/s00330-013-3035-3 https://doi.org/10.1007/s00330-013-3035-3
Li L, Zhao Y, Luo D, Yang L, Hu L, Zhao X, Wang Y, Liu W. Diagnostic value of single-source dual-energy spectral computed tomography in differentiating parotid gland tumors: initial results. Quantitative Imaging in Medicine and Surgery. 2018 Jul;8(6):588. Doi: 10.21037/qims. 2018.07.07 https://doi.org/10.21037/qims
Ali K, Khan SZ, Sultana N, Alghamdi O, Mohammad S, Mokeem SA, Ali S, Abduljabbar T, Vohra F. Assessment of tumor angiogenesis by expression of CD 105 in ameloblastoma, odontogenic keratocyst and central giant cell lesion. Asian Pacific Journal of Cancer Prevention: APJCP. 2020 Nov;21(11):3373. doi: 10.31557/apjcp.2020.21.11.3373 https://doi.org/10.31557/APJCP.2020.21.11.3373
Hayashi K, Tozaki M, Sugisaki M, Yoshida N, Fukuda K, Tanabe H. Dynamic multislice helical CT of ameloblastoma and odontogenic keratocyst: correlation between contrast enhancement and angiogenesis. Journal of Computer-Assisted Tomography. 2002 Nov 1;26(6):922-6. doi: 10.1097/00004728-200211000-00011. https://doi.org/10.1097/00004728-200211000-00011
Ghosh A, Lakshmanan M, Manchanda S, Bhalla AS, Kumar P, Bhutia O, Mridha AR. Contrast-enhanced multidetector computed tomography features and histogram analysis can differentiate ameloblastomas from central giant cell granulomas. World Journal of Radiology. 2022 Sep 28;14(9):329. doi: 10.4329/wjr.v14.i9.329 https://doi.org/10.4329/wjr.v14.i9.329
Kotrashetti SM, John S, Kotrashetti V, Mishra R, Panday S, Kotrashetti S, Kotrashetti V, Mishra S. From Innocuous to Aggressive: A Case of Odontogenic Keratocyst Transforming to Unicystic Ameloblastoma. Cureus. 2025 Feb 10;17(2). doi: 10.7759/cureus 78806. https://doi.org/10.7759/cureus.78806
Cunha G, Rocha AF, Gabrielli MF, Gabrielli MA. Unicystic Ameloblastoma and Odontogenic Keratocyst: Difficulty in Differential Diagnosis. Oral Maxillofac Pathol J. 2021 Jan 1;12(1):38-40. (doi: not available)
Smoker WR, Harnsberger HR. Differential diagnosis of head and neck lesions based on their space of origin. 2. The infrahyoid portion of the neck. AJR. American journal of roentgenology. 1991 Jul;157(1):155-9. Doi: 10.2214/ajr 157.1.2048511. https://doi.org/10.2214/ajr.157.1.2048511
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 Dr Rajesh Gowtham, Dr. Karthik Shunmugavelu

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
















