Abstract
Objective: Among imaging modalities, ultrasonography (US) is one of the most versatilechoice, with its low cost, lack of radiation exposure, and minimally disrupted surgery flow.We described the use and characteristics of intraoperative ultrasonography (US) in selectedcases in our center to assist the intracranial tumor resection.
 Methods :Seventy patients wereoperated from 2011 to 2018 at Kariadi Hospital with the help of intraoperative US. Fifty sixpercents of cases were cystic tumors, 25% were abscess and 19% were metastatic tumors Weused seven parameters to measure the utility of intraoperative US and a utility score was devised(0 minimum, 7 maximum).
 Results: The utility score for intraoperative US was 7 in 3 cases(4%), 6 in 28 cases (54%), 5 in 21 cases (31%), 4 in 8 cases (11%), while no case had score ≤3.
 Conclusion: Intraoperative US is not only helpful in localizing lesions but also it can be usedin determining the morphology of the lesion for some cases, which was glioma in our case.Intraoperative US is also helpful when to start planning the site of entry and complete resection.
 Bangladesh Journal of Medical Science Vol.19(3) 2020 p.575-578
Highlights
Woydt et al and LeRoux et al compared the result of intraoperative US with histopathological finding of low grade gliomas and concluded that intraoperative US could improve the extent of tumor resection.[5,6,7,8]
Our study proved that intraoperative US was considered helpful during the brain tumor surgery
There was no report of utility score below 4, while the majority (54%) of cases considered intraoperative US helpful on 6 out of 7 parameters
Summary
The utilization of intraoperative imaging has prompted an increasingly complete resection of infiltrating tumors coming about to the probability of expanded patient survival time.[1,2] Among imaging modalities, ultrasonography (US) is one of the most flexible decision, with its ease, absence of radiation presentation, and insignificantly disturbed medical procedure flow.[3,4] Several authors have previously reported the benefits of intraoperative US for imaging and guidance in brain surgery.[2,5] Woydt et al and LeRoux et al compared the result of intraoperative US with histopathological finding of low grade gliomas and concluded that intraoperative US could improve the extent of tumor resection.[5,6,7,8] Ultrasonography has been widely used as a noninvasive diagnostic method in assessing thyroid and ovarian lesions.[9,10] Since 1970, US has been used as an intraoperative diagnostic tool.11,12The restriction of subcortical brain tumors, in any case, has constantly
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