Posnick J C, Bite U, Nakano P, Davis J, Armstrong D
Craniofacial Program, Hospital for Sick Children, Toronto, Ont., Canada.
Plast Reconstr Surg. 1992 Jan;89(1):34-45.
This paper describes a method for obtaining indirect intracranial volume measurements using CT scans with CTpak, a software package for quantitative analysis of CT scan data. The validity of this technique was confirmed by comparing direct measurement of the intracranial volume of five dry skulls with axial scans at 1.5- and 4-mm slice intervals to determine indirect volume. The indirect intracranial volume measurement technique was then used to compare preoperative and postoperative intracranial volume in 30 patients with craniosynostosis who underwent cranial vault and orbital osteotomies with reshaping and advancement. Our findings show that the suture release and simultaneous reshaping procedures usually carried out are, in fact, associated with increased intracranial volume. The observed intracranial volume gain is attributable to a combination of factors, including the surgical procedure carried out and ongoing growth. These factors are further modified by the diagnosis, age of the patient, and time interval between CT scans.
本文介绍了一种使用CTpak软件通过CT扫描获取颅内间接容积测量值的方法，CTpak是一个用于CT扫描数据定量分析的软件包。通过将五个干燥颅骨的颅内容积直接测量值与间隔为1.5毫米和4毫米的轴向扫描间接测量颅内容积进行比较，证实了该技术的有效性。然后，采用颅内间接容积测量技术，对30例接受颅穹窿和眼眶截骨整形及前移手术的颅缝早闭患者术前和术后的颅内容积进行比较。我们的研究结果表明，通常实施的缝线松解和同期整形手术实际上与颅内容积增加有关。观察到的颅内容积增加归因于多种因素的综合作用，包括所实施的手术操作和持续生长。这些因素会因诊断、患者年龄以及CT扫描之间的时间间隔而进一步改变。
