Conventional computed tomography (CT) imaging is the standard imaging technique for temporal bone diseases, whereas cone-beam CT (CBCT) imaging is a very fast imaging tool with a significant less radiation dose compared with conventional CT. We hypothesize that a system for intraoperative cone-beam CT provides comparable image quality to diagnostic CT for identifying temporal bone anatomical landmarks in cadaveric specimens.
Study Design
Cross-sectional study.
Setting
University tertiary care facility.
Subjects and Methods
Twenty cadaveric temporal bones were affixed into a head phantom and scanned with both a prototype cone-beam CT C-arm and multislice helical CT. Imaging performance was evaluated by 3 otologic surgeons and 1 head and neck radiologist. Participants were presented images in a randomized order and completed landmark identification questionnaires covering 21 structures.
Results
CBCT and multislice CT have comparable performance in identifying temporal structures. Three otologic surgeons indicated that CBCT provided statistically equivalent performance for 19 of 21 landmarks, with CBCT superior to CT for the chorda tympani and inferior for the crura of the stapes. Subgroup analysis showed that CBCT performed superiorly for temporal bone structures compared with CT. The radiologist rated CBCT and CT as statistically equivalent for 18 of 21 landmarks, with CT superior to CBCT for the crura of stapes, chorda tympani, and sigmoid sinus.
Conclusion
CBCT provides comparable image quality to conventional CT for temporal bone anatomical sites in cadaveric specimens. Clinical applications of low-dose CBCT imaging in surgical planning, intraoperative guidance, and postoperative assessment are promising but require further investigation.
Zain-AlabdeenEHAlsadhanRI. A comparative study of accuracy of detection of surface osseous changes in the temporomandibular joint using multidetector CT and cone beam CT. Dentomaxillofac Radiol. 2012;41:185-191.
2.
LiangXJacobsRHassanB. A comparative evaluation of cone beam computed tomography (CBCT) and multi-slice CT (MSCT) part I. On subjective image quality. Eur J Radiol. 2010;75:265-269.
3.
PoeschlPWSchmidtNGuevara-RojasG. Comparison of cone-beam and conventional multislice computed tomography for image-guided dental implant planning. Clin Oral Investig. 2013;17:317-324.
4.
BarghanSTetradisSMallyaS. Application of cone beam computed tomography for assessment of the temporomandibular joints. Aust Dent J. 2012;57(suppl 1):109-118.
5.
TimockAMCookVMcDonaldT. Accuracy and reliability of buccal bone height and thickness measurements from cone-beam computed tomography imaging. Am J Orthod Dentofacial Orthop. 2011;140:734-744.
6.
DixonBJChanHDalyMJVescanADWitterickIJIrishJC. The effect of augmented real-time image guidance on task workload during endoscopic sinus surgery. Int Forum Allergy Rhinol. 2012;2:405-410.
7.
KingEDalyMJChanH. Intraoperative cone-beam CT for head and neck surgery: feasibility of clinical implementation using a prototype mobile C-arm. Head Neck. 2013;35:959-967.
8.
DeshmukhTRKutheAMVaibhavB. Preplanning and simulation of surgery using rapid modelling. J Med Eng Technol. 2010;34:291-224.
9.
SiewerdsenJHChanYRaffertyMAMoseleyDJJaffrayDAIrishJC. Cone-beam CT with a flat-panel detector on a mobile C-arm: preclinical investigation in image-guided surgery of the head and neck. Proc SPIE Visualization, Display and Image-Guided Procedures. 2005;5744:789-797.
10.
DalyMJSiewerdsenJHMoseleyDJJaffrayDAIrishJC. Intraoperative cone-beam CT for guidance of head and neck surgery: assessment of dose and image quality using a C-arm prototype. Med Phys. 2006;33:3767-3780.
11.
ChanYSiewerdsenJHRaffertyMAMoseleyDJJaffrayDAIrishJC. Cone-beam computed tomography on a mobile C-arm: novel intraoperative imaging technology for guidance of head and neck surgery. J Otolaryngol Head Neck Surg. 2008;37:81-90.
12.
RaffertyMASiewerdsenJHChanY. Intraoperative cone-beam CT for guidance of temporal bone surgery. Otolaryngol Head Neck Surg. 2006;134:801-808.
13.
BarkerETrimbleKChanH. Intraoperative use of cone-beam computed tomography in a cadaveric ossified cochlea model. Otolaryngol Head Neck Surg. 2009;140:697-702.
14.
MonteiroEDasPDalyMChanHIrishJJamesA. Usefulness of cone-beam computed tomography in determining the position of ossicular prostheses: a cadaveric model. Otol Neurotol. 2011;32:1358-1363.
15.
CushingSLDalyMJTreabaCG. High-resolution cone-beam computed tomography: a potential tool to improve atraumatic electrode design and position. Acta Otolaryngol. 2011;132:361-368.
16.
KoslingSBootzF. CT and MR imaging after middle ear surgery. Eur J Radiol. 2001;40:113-118.
17.
MaroldiRFarinaDPalvariniL. Computed tomography and magnetic resonance imaging of pathologic conditions of the middle ear. Eur J Radiol. 2001;40:78-93.
18.
WilliamsMTAyacheD. Imaging of the postoperative middle ear. Eur Radiol. 2004;14:482-495.
19.
BacharGBarkerEChanH. Visualization of anterior skull base defects with intraoperative cone-beam CT. Head Neck. 2010;32:504-512.
20.
HeilandMSchmelzleRHebeckerASchulzeD. Intraoperative 3D imaging of the facial skeleton using the SIREMOBIL Iso-C3D. Dentomaxillofac Radiol. 2004;33:130-132.
21.
StuckBAHulseRBarthTJ. Intraoperative cone beam computed tomography in the management of facial fractures. Int J Oral Maxillofac Surg. 2012;41:1171-1175.
22.
TyndallDAPriceJBTetradisSGanzSDHildeboltCScarfeWC. Position statement of the American Academy of Oral and Maxillofacial Radiology on selection criteria for the use of radiology in dental implantology with emphasis on cone beam computed tomography. Oral Surg Oral Med Oral Pathol Oral Radiol. 2012;113:817-826.
23.
ScarfeWCFarmanAGSukovicP. Clinical applications of cone-beam computed tomography in dental practice. J Can Dent Assoc. 2006;72:75-80.
24.
HashimotoKAraiYIwaiKArakiMKawashimaSTerakadoM. A comparison of a new limited cone beam computed tomography machine for dental use with a multidetector row helical CT machine. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2003;95:371-377.
25.
HashimotoKKawashimaSKameokaS. Comparison of image validity between cone beam computed tomography for dental use and multidetector row helical computed tomography. Dentomaxillofac Radiol. 2007;36:465-471.
26.
MahJKDanforthRABumannAHatcherD. Radiation absorbed in maxillofacial imaging with a new dental computed tomography device. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2003;96:508-513.
27.
MozzoPProcacciCTacconiAMartiniPTAndreisIA. A new volumetric CT machine for dental imaging based on the cone-beam technique: preliminary results. Eur Radiol. 1998;8:1558-1564.
28.
LeeHXingLDavidiRLiRQianJLeeR. Improved compressed sensing-based cone-beam CT reconstruction using adaptive prior image constraints. Phys Med Biol. 2012;57:2287-2307.
29.
IsolaAAMetzCTSchaapMKleinSGrassMNiessenWJ. Cardiac motion-corrected iterative cone-beam CT reconstruction using a semi-automatic minimum cost path-based coronary centerline extraction. Comput Med Imaging Graph. 2012;36:215-226.
30.
XuJTsuiBM. Iterative image reconstruction in helical cone-beam x-ray CT using a stored system matrix approach. Phys Med Biol. 2012;57:3477-3497.
31.
BootsmaGJVerhaegenFJaffrayDA. The effects of compensator and imaging geometry on the distribution of x-ray scatter in CBCT. Med Phys. 2011;38:897-914.
32.
RuhrnschopfEpKlingenbeckK. A general framework and review of scatter correction methods in cone beam CT. Part 2: scatter estimation approaches. Med Phys. 2011;38:5186-5199.
33.
RuhrnschopfEPKlingenbeckK. A general framework and review of scatter correction methods in x-ray cone-beam computerized tomography. Part 1: scatter compensation approaches. Med Phys. 2011;38:4296-4311.
34.
RenLYinFFChettyIJJaffrayDAJinJY. Feasibility study of a synchronized-moving-grid (SMOG) system to improve image quality in cone-beam computed tomography (CBCT). Med Phys. 2012;39:5099-5110.
35.
MailNMoseleyDJSiewerdsenJHJaffrayDA. An empirical method for lag correction in cone-beam CT. Med Phys. 2008;35:5187-5196.
36.
MailNO’BrienPPangG. Lag correction model and ghosting analysis for an indirect-conversion flat-panel imager. J Appl Clin Med Phys. 2007;8:2483.
37.
StarmanJTogninaCPartainLFahrigR. A forward bias method for lag correction of an a-Si flat panel detector. Med Phys. 2012;39:18-27.
38.
StarmanJStar-LackJVirshupGShapiroEFahrigR. Investigation into the optimal linear time-invariant lag correction for radar artifact removal. Med Phys. 2011;38:2398-2411.
39.
MeilingerMSchmidgunstCSchutzOLangEW. Metal artifact reduction in cone beam computed tomography using forward projected reconstruction information. Med Phys. 2011;21:174-182.
40.
ZhangXWangJXingL. Metal artifact reduction in x-ray computed tomography (CT) by constrained optimization. Med Phys. 2011;38:701-711.
41.
LellMMMeyerEKuefnerMA. Normalized metal artifact reduction in head and neck computed tomography. Invest Radiol. 2012;47:415-421.
