Change of Radiologic Index of Foot according to Radiation Projection Angle: A Study Using Phantom Foot / 대한족부족관절학회지
Journal of Korean Foot and Ankle Society
;
: 165-170, 2015.
Article
in Korean
| WPRIM
| ID: wpr-39485
ABSTRACT
PURPOSE:
The purpose of this study is to analyze the measurement differences of simple radiographs according to radiation projection angle using a phantom and to propose methods for objective analysis of simple radiographs. MATERIALS ANDMETHODS:
We took simple radiographs with different projection angles using a C-arm image intensifier and measured five parameters of the foot on the simple radiographic images. Five parameters include lateral tibiocalcaneal angle, lateral talocalcaneal angle, naviculocuboid overlap, lateral talo-first metatarsal angle, and lateral calcaneo-first metatarsal angle. Intraobserver and interobserver reliability were verified, and then intraclass correlations of parameters were analyzed.RESULTS:
Radiographic parameters of the foot showed high intraobserver and interobserver reliability. Lateral tibiocalcaneal angle has a strong negative linear relationship with rotation and a moderate negative linear relationship with tilt. Lateral talocalcaneal angle has a moderate positive linear relationship with rotation and a strong positive linear relationship with tilt. Naviculocuboid overlap has a strong positive linear relationship with rotation and a moderate positive linear relationship with tilt. Lateral talo-first metatarsal angle does not have a linear relationship with rotation and a moderate negative linear relationship with tilt. Lateral calcaneo-first metatarsal angle has a moderate positive linear relationship with rotation and tilt.CONCLUSION:
More precise evaluation of the foot with a simple radiograph can be performed by understanding the changes of radiographic parameters according to radiation projection angle.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Metatarsal Bones
/
Radiography
/
Phantoms, Imaging
/
Foot
Type of study:
Diagnostic study
Language:
Korean
Journal:
Journal of Korean Foot and Ankle Society
Year:
2015
Type:
Article
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