Thomas Deena C, Jo Shiana, Jacob George, Vivek V, Potti Soumya, Sruthy C S
Department of Oral Medicine and Radiology, Sri Sankara Dental College, Thiruvananthapuram, Kerala, India.
Department of Oral Medicine and Radiology, PMS College of Dental Science and Research, Thiruvananthapuram, Kerala, India.
J Pharm Bioallied Sci. 2022 Jul;14(Suppl 1):S369-S372. doi: 10.4103/jpbs.jpbs_621_21. Epub 2022 Jul 13.
To compare the length of styloid process assessed using computed tomography (CT) and panoramic radiographs (PAN).
PAN were taken for 15 patients requiring CT reporting to PMS Dental College or metro scans, after obtaining informed consent and fulfilling all the inclusion and exclusion criteria. CT images were taken in metro scans. The apparent lengths of styloid process were measured in both CT and PAN using software provided with the respective machines. Ethical committee approval was obtained from PMS Dental College, Trivandrum.
The length of left styloid process in CT was observed 20-30 mm in 4 (27%) patients and same in PAN was observed in 5 (33%) patients. Out of 15 patients, abnormal styloid process (length >30 mm) was observed in 11 (73%) patients when measured with CT and 10 (67%) patients in PAN. In CT, the length of the styloid process on the right side was observed between 20 and 30 mm, in 3 (20%) patients. PAN of 2 (13%) patients were found between 20 and 30 mm. On the right side, abnormal styloid process (length >30 mm) was noted in 12 (80%) patients using CT and 13 (87%) patients in PAN. The length of styloid process in the combined sample (both right and left side) was found to be between 20 and 30 mm in 3 (10%) patients and styloid process >30 mm long (in both CT and PAN) was observed in 12 (40%) patients.
This study demonstrated positive correlation between CT and panoramic measurements. "P" values were statistically significant on both sides with values of right side ( = 0.01) and left side ( = 0.002), respectively. Hence, PAN, which are routinely taken, cost-effective and involving relatively low radiation dose, may be used as substitute for CT for the purpose of diagnosis of elongated styloid process. However, for precise measurement of the length of styloid process, CT is still the imaging modality of choice.
比较使用计算机断层扫描（CT）和全景X线片（PAN）评估茎突的长度。
在获得知情同意并满足所有纳入和排除标准后，为15名需要CT报告的患者拍摄PAN，这些患者前往PMS牙科学院或地铁扫描处。CT图像在地铁扫描处拍摄。使用各自机器配备的软件在CT和PAN上测量茎突的表观长度。获得了特里凡得琅PMS牙科学院伦理委员会的批准。
CT显示左侧茎突长度在20 - 30mm的患者有4例（27%），PAN显示相同长度的患者有5例（33%）。15例患者中，用CT测量时11例（73%）患者茎突异常（长度>30mm），PAN测量时10例（67%）患者茎突异常。在CT上，右侧茎突长度在20至30mm之间的患者有3例（20%）。PAN显示2例（13%）患者的茎突长度在20至30mm之间。右侧，使用CT时1
