A Novel Fusion Imaging System for Endoscopic Ultrasound

Overview

Journal Endosc Ultrasound

Date 2016 Feb 17

PMID 26879165

Citations 5

Authors

Lucian Gheorghe Gruionu

Adrian Saftoiu

Gabriel Gruionu

Affiliations

Soon will be listed here.

Abstract

Background And Objective: Navigation of a flexible endoscopic ultrasound (EUS) probe inside the gastrointestinal (GI) tract is problematic due to the small window size and complex anatomy. The goal of the present study was to test the feasibility of a novel fusion imaging (FI) system which uses electromagnetic (EM) sensors to co-register the live EUS images with the pre-procedure computed tomography (CT) data with a novel navigation algorithm and catheter.

Methods: An experienced gastroenterologist and a novice EUS operator tested the FI system on a GI tract bench top model. Also, the experienced gastroenterologist performed a case series of 20 patients during routine EUS examinations.

Results: On the bench top model, the experienced and novice doctors reached the targets in 67 ± 18 s and 150 ± 24 s with a registration error of 6 ± 3 mm and 11 ± 4 mm, respectively. In the case series, the total procedure time was 24.6 ± 6.6 min, while the time to reach the clinical target was 8.7 ± 4.2 min.

Conclusions: The FI system is feasible for clinical use, and can reduce the learning curve for EUS procedures and improve navigation and targeting in difficult anatomic locations.

Citing Articles

Image Fusion Involving Real-Time Transabdominal or Endoscopic Ultrasound for Gastrointestinal Malignancies: Review of Current and Future Applications.

Singh B, Cazacu I, Deza C, Rigaud B, Saftoiu A, Gruionu G Diagnostics (Basel). 2022; 12(12).

PMID: 36553225 PMC: 9777678. DOI: 10.3390/diagnostics12123218.

Feasibility of a lung airway navigation system using fiber-Bragg shape sensing and artificial intelligence for early diagnosis of lung cancer.

Gruionu L, Udristoiu A, Iacob A, Constantinescu C, Stan R, Gruionu G PLoS One. 2022; 17(12):e0277938.

PMID: 36476838 PMC: 9728835. DOI: 10.1371/journal.pone.0277938.

Advanced EUS Imaging Techniques.

Cazacu I, Saftoiu A, Bhutani M Dig Dis Sci. 2022; 67(5):1588-1598.

PMID: 35451709 DOI: 10.1007/s10620-022-07486-9.

Determination of optimal ultrasound planes for the initialisation of image registration during endoscopic ultrasound-guided procedures.

Bonmati E, Hu Y, Gibson E, Uribarri L, Keane G, Gurusami K Int J Comput Assist Radiol Surg. 2018; 13(6):875-883.

PMID: 29663274 PMC: 5973980. DOI: 10.1007/s11548-018-1762-2.

The role of contrast-enhanced endoscopic ultrasound in pancreatic adenocarcinoma.

Saftoiu A, Vilmann P, Bhutani M Endosc Ultrasound. 2016; 5(6):368-372.

PMID: 28000627 PMC: 5206824. DOI: 10.4103/2303-9027.190932.

References

Fritscher-Ravens A, Cuming T, Dhar S, Parupudi S, Patel K, Ghanbari A . Endoscopic ultrasound-guided fine needle aspiration training: evaluation of a new porcine lymphadenopathy model for in vivo hands-on teaching and training, and review of the literature. Endoscopy. 2013; 45(2):114-20. DOI: 10.1055/s-0032-1325931. View

Saftoiu A, Gheonea D . Tridimensional (3D) endoscopic ultrasound - a pictorial review. J Gastrointestin Liver Dis. 2010; 18(4):501-5. View

Enquobahrie A, Cheng P, Gary K, Ibanez L, Gobbi D, Lindseth F . The image-guided surgery toolkit IGSTK: an open source C++ software toolkit. J Digit Imaging. 2007; 20 Suppl 1:21-33. PMC: 2039836. DOI: 10.1007/s10278-007-9054-3. View

Vilmann P, Seicean A, Saftoiu A . Tips to overcome technical challenges in EUS-guided tissue acquisition. Gastrointest Endosc Clin N Am. 2013; 24(1):109-24. DOI: 10.1016/j.giec.2013.08.009. View

Kefalides P, Gress F . Simulator training for endoscopic ultrasound. Gastrointest Endosc Clin N Am. 2006; 16(3):543-52, viii. DOI: 10.1016/j.giec.2006.03.018. View

Eisen G, Dominitz J, Goldstein J, Petersen B, Raddawi H, Ryan M . Guidelines for credentialing and granting privileges for endoscopic ultrasound. Gastrointest Endosc. 2001; 54(6):811-4. DOI: 10.1016/s0016-5107(01)70082-x. View

Mekky M, Abbas W . Endoscopic ultrasound in gastroenterology: from diagnosis to therapeutic implications. World J Gastroenterol. 2014; 20(24):7801-7. PMC: 4069309. DOI: 10.3748/wjg.v20.i24.7801. View

Yaniv Z, Cheng P, Wilson E, Popa T, Lindisch D, Campos-Nanez E . Needle-based interventions with the image-guided surgery toolkit (IGSTK): from phantoms to clinical trials. IEEE Trans Biomed Eng. 2009; 57(4):922-33. DOI: 10.1109/TBME.2009.2035688. View

Barthet M . Endoscopic ultrasound teaching and learning. Minerva Med. 2007; 98(4):247-51. View

10.

Fritscher-Ravens A, Knoefel W, Krause C, Swain C, Brandt L, Patel K . Three-dimensional linear endoscopic ultrasound-feasibility of a novel technique applied for the detection of vessel involvement of pancreatic masses. Am J Gastroenterol. 2005; 100(6):1296-302. DOI: 10.1111/j.1572-0241.2005.41681.x. View

11.

Manstad-Hulaas F, Tangen G, Gruionu L, Aadahl P, Hernes T . Three-dimensional endovascular navigation with electromagnetic tracking: ex vivo and in vivo accuracy. J Endovasc Ther. 2011; 18(2):230-40. DOI: 10.1583/10-3301.1. View

12.

Bhutani M, Wong R, HOFFMAN B . Training facilities in gastrointestinal endoscopy: an animal model as an aid to learning endoscopic ultrasound. Endoscopy. 2006; 38(9):932-4. DOI: 10.1055/s-2006-925449. View

13.

Obstein K, Estepar R, Jayender J, Patil V, Spofford I, Ryan M . Image Registered Gastroscopic Ultrasound (IRGUS) in human subjects: a pilot study to assess feasibility. Endoscopy. 2011; 43(5):394-9. PMC: 4054821. DOI: 10.1055/s-0030-1256241. View

14.

Wani S, Cote G, Keswani R, Mullady D, Azar R, Murad F . Learning curves for EUS by using cumulative sum analysis: implications for American Society for Gastrointestinal Endoscopy recommendations for training. Gastrointest Endosc. 2012; 77(4):558-65. DOI: 10.1016/j.gie.2012.10.012. View

15.

Banovac F, Cheng P, Campos-Nanez E, Kallakury B, Popa T, Wilson E . Radiofrequency ablation of lung tumors in swine assisted by a navigation device with preprocedural volumetric planning. J Vasc Interv Radiol. 2009; 21(1):122-9. PMC: 2818540. DOI: 10.1016/j.jvir.2009.09.012. View

16.

Ewertsen C, Saftoiu A, Gruionu L, Karstrup S, Nielsen M . Real-time image fusion involving diagnostic ultrasound. AJR Am J Roentgenol. 2013; 200(3):W249-55. DOI: 10.2214/AJR.12.8904. View

17.

Vosburgh K, Stylopoulos N, San Jose Estepar R, Ellis R, Samset E, Thompson C . EUS with CT improves efficiency and structure identification over conventional EUS. Gastrointest Endosc. 2007; 65(6):866-70. DOI: 10.1016/j.gie.2006.09.021. View