Intraoperative Ultrasound
Intraoperative Ultrasound - Related Videos
05:53
Intraoperative Ultrasound in Spinal Surgery
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2022
Here, we present a protocol on the use of intraoperative ultrasound in spinal surgery, particularly in cases of intradural lesions and lesions in the ventral spinal canal when using a posterior approach.
10:31
Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma
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Cited by 12 •
2016
In early gastric cancer, the aim of surgery is to precisely remove the distal stomach including the primary tumor. To do this, accurate localization of the tumor is crucial, especially in totally laparoscopic surgery. This protocol describes a procedure for intraoperative gastroscopy in totally laparoscopic subtotal gastrectomy.
18:50
Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
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Cited by 3 •
2009
Description of the surgical obliteration of a cerebral aneurysm utilizing an ultrasonic flow probe to assess arterial flow prior to and after aneurysm clip placement.
05:56
Evaluation of the Feasibility, Safety, and Accuracy of an Intraoperative High-intensity Focused Ultrasound Device for Treating Liver Metastases
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Cited by 19 •
2019
Here, we present an ablate-and-resect prospective study to evaluate the feasibility, safety, and accuracy of intraoperative high-intensity focused ultrasound ablation in patients undergoing hepatectomy for liver metastases.
05:22
Intraoperative Strategy under Complex Vascular Adhesion for Laparoscopic Radical Resection of Bismuth-Corlette Type IIIb Perihilar Cholangiocarcinoma
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2026
The protocol presents a step-by-step laparoscopic protocol for radical resection of Bismuth-Corlette type IIIb perihilar cholangiocarcinoma. The procedure integrates preoperative PTCD, complex vascular dissection and repair, and biliary reconstruction for application in high-volume hepatobiliary centers.
FAQs
Image formation depends on echoes returning from tissue after high-frequency sound waves enter the operative field. Differences in those echoes are converted into images that help distinguish tumors from nearby structures. Doppler methods add information by assessing blood flow, giving surgeons another feature for interpreting anatomy and lesion relationships during an operation.
Moving the probe during surgery allows the imaging view to change as tissue is exposed or repositioned. This matters when direct inspection cannot fully show a lesion or its boundaries. Repeated views can track tissue changes and clarify how the suspected tumor relates to surrounding anatomy, supporting decisions made while the procedure is still underway.
Unlike imaging feedback obtained only before an operation, intraoperative ultrasound provides immediate information while the surgical field is changing. Its radiation-free nature is especially relevant when teams need repeated assessments during one procedure. The practical benefit is not simply visualization; surgeons can use updated images to reconsider localization, lesion extent, or possible residual disease before completing the operation.
Use begins with placement of a sterile ultrasound probe in the operative setting. The operator adjusts its position to examine anatomy, tumors, and surrounding structures, while Doppler methods can assess blood flow. During the operation, repeated views provide current information for localization, boundary assessment, or evaluation of suspected residual disease.
In cancer care and research, the technique supports several distinct decisions. It can help localize a tumor, target a biopsy, assess resection margins, and detect disease that may remain after tissue removal. These uses connect imaging directly with operative decisions, making the method valuable when the lesion or its boundaries are difficult to identify by direct inspection alone.
Beyond immediate surgical guidance, intraoperative ultrasound can support cancer studies of tumor structure and treatment response. Real-time images show anatomy and lesion boundaries during the operation, while repeated probe adjustments can reveal tissue changes. Researchers can therefore relate operative imaging findings to questions about localization, extent, or how a tumor appears to change during treatment.