Linear Accuracy of Cone Beam CT Derived 3D Images

Brown, April A.; Scarfe, William C.; Scheetz, James P.; Silveira, Anibal M.; Farman, Allan G.

doi:10.2319/122407-599.1

Cited by 159 publications

(150 citation statements)

References 16 publications

Supporting

Mentioning

107

Contrasting

Unclassified

Order By: Relevance

“…Our results are, in general, similar to the previous findings [28][29][30] in terms of measurement accuracy and reproducibility thereby suggesting the use of CBCT units in dentomaxillofacial diagnosis, treatment planning and follow-up.…”

Section: Discussionsupporting

confidence: 82%

Accuracy of CBCT Measurements of a Human Skull

et al. 2010

View full text Add to dashboard Cite

The purpose of this study is to assess the accuracy and reproducibility of cone-beam computed tomography (CBCT) measurements of a human dry skull by comparing them to direct digital caliper measurements. Heated gutta-percha was used to mark 13 specific distances on a human skull, and the distances were directly measured using a digital caliper and on CBCT images obtained with Iluma (3M Imtec, OK, USA) and 3D Accuitomo 170 (3D Accuitomo; J Morita Mfg. Corp., Kyoto, Japan) CBCT imaging systems. Iluma images were obtained at 120 kVp and 3.8 mA and reconstructed using voxel sizes of 0.2 and 0.3 mm 3 . Accuitomo images were obtained at 60 kVp and 2 mA and a voxel size of 0.250 mm 3 . In addition, 3-D reconstructions were produced from images obtained from both systems. All measurements were made independently by three trained observers and were repeated after an interval of 1 week. Agreement between observers and image type was assessed by calculating Pearson correlation coefficients, with a level of significance set at p<0.05. Pearson correlation coefficients between readings ranged from 0.995 to 1 for all image types. Correlations among observers were also very high, ranging from 0.992 to 1 for the first reading and from 0.992 to 1 for the second reading for the different image types. All CBCT image measurements were identical and highly correlated with digital caliper measurements. Accuracy of measurements of various distances on a human skull obtained from different CBCT units and image types is comparable to that of digital caliper measurements.

show abstract

Section: Discussionsupporting

confidence: 82%

Accuracy of CBCT Measurements of a Human Skull

et al. 2010

View full text Add to dashboard Cite

show abstract

“…According to several studies, this technique has advantages over traditional twodimensional (2D) cephalometric analysis, especially on the accuracy of the measurements and the reproducibility of landmark identification 15) .…”

Section: Introductionmentioning

confidence: 99%

3DCT Morphometric Analysis of Sella Turcica in Iraqi Population

Hasan

Alam

Abdullah

et al. 2016

J. Hard Tissue Biology.

View full text Add to dashboard Cite

The purpose of this study was to describe the morphology and measure the size of the sella turcica in Iraqi population and compared with available global data. Computed Tomography (CT) images of 71 individuals (49 males and 22 females) with an age range of 33.9 years were taken. Conventional measurements included three different heights of the sella turcica (anterior, posterior, median), its length, diameter and width, measured in relation to the Frankfort reference line (FH). In addition, the area of sella turcica was calculated. Morphometric methods were used to assess shape. Multiple statistical analyses were done to calculate differences in dimensions and to establish if any relationship exists between age, sex and the morphometry of the sella turcica. No significant differences in size of the sella were found between genders. When age was evaluated, all dimensions showed positive correlation with the age. Sella size of the older age group was as a rule larger than the younger age. The study found that sella turcica presented with a three different shapes: in a U shape (50.7 %), in a J shape (32.4 %) and shallow (16.9 %). Sella shape and dimensions reported in the current study can be used for discovering pathological enlargement of the pituitary fossa and may also be helpful in providing reference data in the orthodontic diagnosis, assessment and treatment plan and assessment of racial, gender and age specific variation in the Iraqi population.

show abstract

“…Without including the superimposition of anatomical structure orthodontists can imagine 3D pictures of craniofacial structures [14][15] .With the advent of so many 3D imaging software 2D images can reconstruct in 3D. Thus help orthodontist to get more accurate measurements for craniofacial structures [16][17][18] . So the immense change of imaging strategies has made it conceivable to perform research that characterizes the morphology of the human body structures.…”

Section: Introductionmentioning

confidence: 99%

3D CT Study of Morphological Shape and Size of Sella Turcica in Bangladeshi Population

Islam

Alam

Yusof

et al. 2017

J. Hard Tissue Biology.

View full text Add to dashboard Cite

This study represents the morphology and measures the size and shape of the sella turcica in Bangladeshi populace and contrast with accessible global information. A sum of 166 (108men and 58 ladies) Bangladeshi subjects who went through Computed tomography (CT) scan at the Radiology Department were taken. A 3D imaging software (Mimics 11.02 Materialise) was utilized to process the CT images. Morphometric strategies were utilized to evaluate size and shape. The parameters for conventional measurements were three dissimilar sella height (anterior, posterior and median), sella length, diameter and width, where all of them deliberated in relation with Frankfort reference line (FH). Total area of sella turcica also considered. No important contrasts in size of the sella were found between sexes. The study found that sella turcica gave three unique shapes which were considered flat (28.3%), ovoid (48.1%) and circle (23.4%). In another morphological classification sella turcica represent 6 different variations. Those were normal sella (69.2%), oblique anterior wall (4.8%), double contour of sella floor (6.6%), sella turcica bridge (0 %), irregularity (notching) in the posterior part of the dorsum sella (16.2%) and pyramidal shape of dorsum sella (3.0%). Sella shape and measurements reported in the present study can be useful in giving reference information in the orthodontic determination, appraisal and treatment arrangement and evaluation of sex dimorphism in Bangladeshi subjects.

show abstract

Linear Accuracy of Cone Beam CT Derived 3D Images

Cited by 159 publications

References 16 publications

Accuracy of CBCT Measurements of a Human Skull

Accuracy of CBCT Measurements of a Human Skull

3DCT Morphometric Analysis of Sella Turcica in Iraqi Population

3D CT Study of Morphological Shape and Size of Sella Turcica in Bangladeshi Population

Contact Info

Product

Resources

About