Role of intraoperative ultrasound in resection of pediatric brain tumors

Abstract

Intraoperative ultrasound is suggested to be a useful imaging technique in defining the border between the tumor and healthy brain tissue pre-resection, in detecting residual tumor tissues after the resection of the mass, and in guiding to the shortest and safest access to the tumor during neurosurgery.

3T Intraoperative MRI for Management of Pediatric CNS Neoplasms

“…[19][20][21][22][23] Few uses of sonography have been shown in pediatric tumors. 24,25 Sonography is highly operatordependent, and proper orientation with respect to the resection cavity can be difficult. iMRI allows spatial localization of the resection cavity and possible residual tumor, in a manner that easily compares with preoperative imaging and can serve as a comparison study for postoperative follow-up scans.…”

Resection of pediatric intracerebral tumors with the aid of intraoperative real-time 3-D ultrasound

“…El Beltagy et al recently described the role of IOUS in resection of pediatric patients [10]. This group worked with a 2-D 6.5-MHz probe in conventional B-mode, and EOR was the same when comparing IOUS and immediate postoperative MRI.…”

“…So far, only studies with real-time 2-D imaging or reconstructed (time-delayed) 3-D imaging have been conducted [10,17,25,26].…”

Intraoperative Guidance for Pediatric Brain Surgery based on Optical Techniques

“…It is capable of detecting neoplastic tumors because of their hyperechoic characteristic, which is associated with the structural abnormalities of brain tumors [19,20]. While it is very accurate in detecting confined, deeply located remnants of low-or high-grade tumors, the accuracy of ultrasound imaging is limited when detecting superficial remnants [20].…”

“…However, iMRI requires very high standard infrastructure, which is expensive both in installment and maintenance, and its image acquisition time is relatively long. A popular alternative is ultrasound, which is also capable of real-time imaging of brain tumors [19,20]. However, its reliability in detecting tumor is less than that of iMRI; Gerganov et al compared the ultrasound technique with iMRI and pointed out that ultrasound could be used to detect more confined deeply located remnants of low-or high-grade tumors with high accuracy, though its accuracy is limited when detecting superficial remnants [20].…”