In vivo comparison of conventional and cone beam CT synthesized cephalograms.
In vivo comparison of conventional and cone beam CT synthesized cephalograms.
复制标题
在体内比较常规和锥束CT合成的头形图。
DOI：
10.2319/082907-399.1
复制
发表时间：
2008-09
期刊：
影响因子：
--
通讯作者：
Mol A
中科院分区：
文献类型：
--
作者：
Kumar V;Ludlow J;Soares Cevidanes LH;Mol A
目的：比较合成锥束计算机断层摄影(CBCT)头颅侧位片采用正交法和透视投影法的测量结果与传统头影测量方法的测量结果。31例患者接受了CBCT和常规头影测量。在Dolphin 3D中导入CBCT体积数据。从三维(3D)虚拟模型创建了正交和透视的头影测量侧位片。以随机方式在合成和常规头影面片上进行了12个线性测量和5个角度测量。根据已知的放大倍数，对传统的图像测量进行了校正。使用重复测量方差分析比较不同图像形态之间的线性测量和角度测量。统计学意义被定义为α水平为0.01。除法兰克福-下颌平面角(P<；.0001)外，任何形式的角度测量均无统计学差异(P>；.01)。线性测量，无论是基于软组织还是硬组织标志物，在统计学上没有差异(P>；.01)。从活体CBCT合成的头影像测量结果与基于传统放射图像的测量结果相似。因此，当获取CBCT扫描用于正畸诊断时，通常可以避免额外的常规成像。
To compare measurements from synthesized cone-beam computed tomography (CBCT) lateral cephalograms using orthogonal and perspective projections with those from conventional cephalometric radiographs. Thirty-one patients were imaged using CBCT and conventional cephalometry. CBCT volume data were imported in Dolphin 3D. Orthogonal and perspective lateral cephalometric radiographs were created from three-dimensional (3D) virtual models. Twelve linear and five angular measurements were made on synthesized and conventional cephalograms in a randomized fashion. Conventional image measurements were corrected for known magnification. Linear and angular measurements were compared between image modalities using repeated measures analysis of variance. Statistical significance was defined as an α level of .01. With the exception of the Frankfort-mandibular plane angle (P < .0001), angular measurements were not statistically different for any modality (P > .01). Linear measurements, whether based on soft or hard tissue landmarks, were not statistically different (P > .01). Measurements from in vivo CBCT synthesized cephalograms are similar to those based on conventional radiographic images. Thus, additional conventional imaging may generally be avoided when CBCT scans are acquired for orthodontic diagnosis.
登录
查看更多内容
DOI：
10.1016/0889-5406(88)90130-8
发表时间：
1988-11-01
影响因子：
3
作者：
ADENWALLA, ST;KRONMAN, JH;ATTARZADEH, F
通讯作者：
ATTARZADEH, F
影响因子：
3.1
作者：
Sukovic, P
通讯作者：
Sukovic, P
DOI：
10.1016/j.tripleo.2006.04.008
发表时间：
2007-04-01
期刊：
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY
影响因子：
--
作者：
Ludlow, John B.;Laster, William Stewart;Garland Hershey, H.
通讯作者：
Garland Hershey, H.
影响因子：
2.6
作者：
Malkoc, S;Sari, Z;Koyuturk, AE
通讯作者：
Koyuturk, AE
DOI：
10.1016/s0889-5406(94)70045-1
发表时间：
1994-09-01
影响因子：
3
作者：
FERRARIO, VF;SFORZA, C;MIANI, A
通讯作者：
MIANI, A