The effects of slice thickness and interslice interval on reconstructed cone beam computed tomographic images.

OBJECTIVE The objective of this study was to compare the effects of varying 2 image-processing parameters, slice thickness and interslice interval, on the appearances of reconstructed cone beam CT (CBCT) images. STUDY DESIGN Bone height was used a metric for comparing images reconstructed with different slice thicknesses and interslice intervals. We examined 102 putative implant sites in 18 subjects who had treatment planned for dental implants and who were imaged with custom-fitted imaging stents with linear radiopaque markers. Image slice thickness and interslice interval were increased in millimetric increments from 1 to 5 mm, and bone height was used to determine if varying these parameters had a bearing on the resulting images. RESULTS Statistically significant differences were found between bone heights when slice thickness or interslice interval were varied by greater than 1 mm (P < .005). CONCLUSIONS Understanding the effects of slice thickness and interslice interval may be important in the portrayal of both normal anatomy and pathoses in CBCT images.

[1]  L. Will,et al.  Accuracy and reliability of linear cephalometric measurements from cone-beam computed tomography scans of a dry human skull. , 2009, American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

[2]  S A Stratemann,et al.  Comparison of cone beam computed tomography imaging with physical measures. , 2008, Dento maxillo facial radiology.

[3]  M Kortesniemi,et al.  Accuracy of linear measurements using dental cone beam and conventional multislice computed tomography. , 2008, Dento maxillo facial radiology.

[4]  L. Will,et al.  Editor's Summary and Q&A: Accuracy and reliability of linear cephalometric measurements from cone-beam computed tomography scans of a dry human skull , 2009 .

[5]  A. P. Marques,et al.  Accuracy of magnetic resonance imaging compared with computed tomography for implant planning. , 2008, Clinical oral implants research.

[6]  Kaoru Kobayashi,et al.  Accuracy in measurement of distance using limited cone-beam computerized tomography. , 2004, The International journal of oral & maxillofacial implants.

[7]  K. Honda,et al.  Reproducibility and accuracy of measuring unerupted teeth using limited cone beam X-ray CT. , 2007, Dento maxillo facial radiology.

[8]  Erwin Keeve,et al.  Geometric accuracy of a newly developed cone-beam device for maxillofacial imaging. , 2007, Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics.

[9]  Akitoshi Katsumata,et al.  Measurement of mandibles with microfocus x-ray computerized tomography and compact computerized tomography for dental use. , 2004, The International journal of oral & maxillofacial implants.

[10]  M. Jeffcoat,et al.  A comparison of the diagnostic advantages of panoramic radiography and computed tomography scanning for placement of root form dental implants. , 1994, Clinical oral implants research.

[11]  K Gröndahl,et al.  Accuracy and precision of linear measurements in cone beam computed tomography Accuitomo tomograms obtained with different reconstruction techniques. , 2009, Dento maxillo facial radiology.

[12]  E. Ariji,et al.  Cross-sectional imaging of the jaws for dental implant treatment: accuracy of linear tomography using a panoramic machine in comparison with reformatted computed tomography. , 2002, The International journal of oral & maxillofacial implants.

[13]  A. Farman,et al.  Accuracy of dimensional and angular measurements from panoramic and lateral oblique radiographs. , 1995, Dento maxillo facial radiology.

[14]  John B Ludlow,et al.  Accuracy of measurements of mandibular anatomy in cone beam computed tomography images. , 2007, Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics.