Freesmeyer Martin, Wiegand Steffen, Schierz Jan-Henning, Winkens Thomas, Licht Katharina
Clinic of Nuclear Medicine, Jena University Hospital, Jena, Germany.
Clinic of Nuclear Medicine, Jena University Hospital, Jena, Germany.
Ultrasound Med Biol. 2014 Jul;40(7):1453-62. doi: 10.1016/j.ultrasmedbio.2014.02.013. Epub 2014 Apr 24.
A precise estimate of thyroid volume is necessary for making adequate therapeutic decisions and planning, as well as for monitoring therapy response. The goal of this study was to compare the precision of different volumetry methods. Thyroid-shaped phantoms were subjected to volumetry via 2-D and 3-D ultrasonography (US), computed tomography (CT) and magnetic resonance imaging (MRI). The 3-D US scans were performed using sensor navigation and mechanical sweeping methods. Volumetry calculation ensued with the conventional ellipsoid model and the manual tracing method. The study confirmed the superiority of manual tracing with CT and MRI volumetry of the thyroid, but extended this knowledge also to the superiority of the 3-D US method, regardless of whether sensor navigation or mechanical sweeping is used. A novel aspect was successful use of the same universally applicable cross-imaging software for all modalities.
准确估计甲状腺体积对于做出适当的治疗决策和规划以及监测治疗反应至关重要。本研究的目的是比较不同体积测量方法的精度。通过二维和三维超声检查（US）、计算机断层扫描（CT）和磁共振成像（MRI）对甲状腺形状的体模进行体积测量。三维超声扫描采用传感器导航和机械扫查方法进行。随后使用传统的椭球体模型和手动追踪方法进行体积计算。该研究证实了CT和MRI甲状腺体积测量中手动追踪的优越性，但也将这一认识扩展到了三维超声方法的优越性，无论使用传感器导航还是机械扫查。一个新的方面是成功地将相同的通用交叉成像软件应用于所有模态。
