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一种改良低剂量采集方案用于微型种植体植入部位术前评估的诊断效能

Diagnostic efficacy of a modified low-dose acquisition protocol for the preoperative evaluation of mini-implant sites.

作者信息

Tadinada Aditya, Marczak Alana, Yadav Sumit

机构信息

Division of Oral and Maxillofacial Radiology, University of Connecticut School of Dental Medicine, Farmington, CT, USA.

School of Dental Medicine, University of Connecticut School of Dental Medicine, Farmington, CT, USA.

出版信息

Imaging Sci Dent. 2017 Sep;47(3):141-147. doi: 10.5624/isd.2017.47.3.141. Epub 2017 Sep 21.

DOI:10.5624/isd.2017.47.3.141
PMID:28989896
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5620458/
Abstract

PURPOSE

The objective of this study was to compare the outcomes of surgical mini-implant placement when potential mini-implant sites were scanned using a lower-dose 180° acquisition protocol versus a conventional 360° acquisition protocol.

MATERIALS AND METHODS

Ten dentate human skulls were used to provide sites for potential mini-implant placement. The sites were randomly divided into 2 groups: 360° and 180° cone-beam computed tomography (CBCT) acquisition protocols. A small-volume 180° CBCT scan and a 360° CBCT scan of each site were acquired using a Morita Accuitomo-170 CBCT machine and then a mini-implant was placed. A follow-up 360° CBCT scan was done as a gold standard to evaluate the location of the mini-implant and root perforation. Two raters evaluated the scans.

RESULTS

Ninety-eight percent of the mini-implants placed did not perforate any root structure. Two percent of the sites had an appearance suggestive of perforation. On a Likert scale, both raters agreed that their subjective evaluation of the diagnostic quality of the protocols, ability to make and read measurements of the sites, and preferences for the specified diagnostic task were comparable. The Cohen kappa showed high inter-rater and intra-rater agreement.

CONCLUSION

In this ex vivo study, we found that the 180° rotational acquisition was as effective as the conventional 360° rotational acquisition for the preoperative evaluation of potential mini-implant sites.

摘要

目的

本研究的目的是比较在使用低剂量180°采集协议与传统360°采集协议扫描潜在微型种植体植入部位时，手术植入微型种植体的结果。

材料与方法

使用10个有牙的人类颅骨提供潜在微型种植体植入部位。这些部位被随机分为两组：360°和180°锥形束计算机断层扫描（CBCT）采集协议。使用森田Accuitomo - 170 CBCT机对每个部位进行小体积180°CBCT扫描和360°CBCT扫描，然后植入微型种植体。进行后续的360°CBCT扫描作为金标准，以评估微型种植体的位置和牙根穿孔情况。两名评估者对扫描结果进行评估。

结果

所植入的微型种植体中有98%未穿透任何牙根结构。2%的部位有疑似穿孔的表现。在李克特量表上，两名评估者均认为他们对协议诊断质量的主观评估、对部位进行测量和解读测量结果的能力以及对指定诊断任务的偏好具有可比性。科恩kappa系数显示评估者间和评估者内的一致性较高。

结论

在这项体外研究中，我们发现180°旋转采集在术前评估潜在微型种植体植入部位方面与传统360°旋转采集同样有效。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/26b626a1dd2b/isd-47-141-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/d48f0996776c/isd-47-141-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/0c521a1896da/isd-47-141-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/6b5ad5da98ea/isd-47-141-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/b81857e8533c/isd-47-141-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/615e0d013713/isd-47-141-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/0625324ceee1/isd-47-141-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/a2aceb4d5fa0/isd-47-141-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/26b626a1dd2b/isd-47-141-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/d48f0996776c/isd-47-141-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/0c521a1896da/isd-47-141-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/6b5ad5da98ea/isd-47-141-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/b81857e8533c/isd-47-141-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/615e0d013713/isd-47-141-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/0625324ceee1/isd-47-141-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/a2aceb4d5fa0/isd-47-141-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcac/5620458/26b626a1dd2b/isd-47-141-g008.jpg

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