Biopsy guided by real-time sonography fused with MRI: a phantom study

C. Ewertsen; Hanne Sønder Grossjohann; Kristina Rue Nielsen; Søren Torp-Pedersen; Michael Bachmann Nielsen

doi:10.2214/AJR.07.2587

Biopsy guided by real-time sonography fused with MRI: a phantom study

C. Ewertsen, Hanne Sønder Grossjohann, Kristina Rue Nielsen, Søren Torp-Pedersen, Michael Bachmann Nielsen

22 Citationer (Scopus)

Abstract

OBJECTIVE: The purpose of our study was to test the accuracy of sonographically guided biopsies in a phantom of structures not visible on sonography but shown on MRI by using commercially available sonography systems with image fusion software. MATERIALS AND METHODS: A previously recorded MRI examination from a custom-made phantom was loaded into the sonography system. The phantom contained spheres that were invisible to sonography and contained red dye. The red dye was visible in the biopsy if it was successful. The images were coregistered using structures visible on both sonography and MRI, and biopsies were taken. The biopsy procedure was continued until a biopsy was successful, and the number of needle passes and time spent were registered. RESULTS: A total of 130 targets were hit. Ten minutes was used for loading the MRI data set and the coregistration; 94 of the 130 biopsies (72.3%) were successful at the first needle pass. The median number of needle passes until a successful biopsy was obtained was one (range, 1-7). CONCLUSION: The described method was successful in obtaining an adequate sample in a phantom
Udgivelsesdato: 2008/6

Originalsprog	Engelsk
Tidsskrift	American Journal of Roentgenology
Vol/bind	190
Udgave nummer	6
Sider (fra-til)	1671-1674
Antal sider	3
ISSN	0361-803X
DOI	https://doi.org/10.2214/AJR.07.2587
Status	Udgivet - 2008

Adgang til dokumentet

10.2214/AJR.07.2587

Citationsformater

@article{0a7dda50f68b11ddbf70000ea68e967b,

title = "Biopsy guided by real-time sonography fused with MRI: a phantom study",

abstract = "OBJECTIVE: The purpose of our study was to test the accuracy of sonographically guided biopsies in a phantom of structures not visible on sonography but shown on MRI by using commercially available sonography systems with image fusion software. MATERIALS AND METHODS: A previously recorded MRI examination from a custom-made phantom was loaded into the sonography system. The phantom contained spheres that were invisible to sonography and contained red dye. The red dye was visible in the biopsy if it was successful. The images were coregistered using structures visible on both sonography and MRI, and biopsies were taken. The biopsy procedure was continued until a biopsy was successful, and the number of needle passes and time spent were registered. RESULTS: A total of 130 targets were hit. Ten minutes was used for loading the MRI data set and the coregistration; 94 of the 130 biopsies (72.3%) were successful at the first needle pass. The median number of needle passes until a successful biopsy was obtained was one (range, 1-7). CONCLUSION: The described method was successful in obtaining an adequate sample in a phantom Udgivelsesdato: 2008/6",

author = "C. Ewertsen and Grossjohann, {Hanne S{\o}nder} and Nielsen, {Kristina Rue} and S{\o}ren Torp-Pedersen and Nielsen, {Michael Bachmann}",

year = "2008",

doi = "10.2214/AJR.07.2587",

language = "English",

volume = "190",

pages = "1671--1674",

journal = "American Journal of Roentgenology",

issn = "0361-803X",

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TY - JOUR

T1 - Biopsy guided by real-time sonography fused with MRI: a phantom study

AU - Ewertsen, C.

AU - Grossjohann, Hanne Sønder

AU - Nielsen, Kristina Rue

AU - Torp-Pedersen, Søren

AU - Nielsen, Michael Bachmann

PY - 2008

Y1 - 2008

N2 - OBJECTIVE: The purpose of our study was to test the accuracy of sonographically guided biopsies in a phantom of structures not visible on sonography but shown on MRI by using commercially available sonography systems with image fusion software. MATERIALS AND METHODS: A previously recorded MRI examination from a custom-made phantom was loaded into the sonography system. The phantom contained spheres that were invisible to sonography and contained red dye. The red dye was visible in the biopsy if it was successful. The images were coregistered using structures visible on both sonography and MRI, and biopsies were taken. The biopsy procedure was continued until a biopsy was successful, and the number of needle passes and time spent were registered. RESULTS: A total of 130 targets were hit. Ten minutes was used for loading the MRI data set and the coregistration; 94 of the 130 biopsies (72.3%) were successful at the first needle pass. The median number of needle passes until a successful biopsy was obtained was one (range, 1-7). CONCLUSION: The described method was successful in obtaining an adequate sample in a phantom Udgivelsesdato: 2008/6

AB - OBJECTIVE: The purpose of our study was to test the accuracy of sonographically guided biopsies in a phantom of structures not visible on sonography but shown on MRI by using commercially available sonography systems with image fusion software. MATERIALS AND METHODS: A previously recorded MRI examination from a custom-made phantom was loaded into the sonography system. The phantom contained spheres that were invisible to sonography and contained red dye. The red dye was visible in the biopsy if it was successful. The images were coregistered using structures visible on both sonography and MRI, and biopsies were taken. The biopsy procedure was continued until a biopsy was successful, and the number of needle passes and time spent were registered. RESULTS: A total of 130 targets were hit. Ten minutes was used for loading the MRI data set and the coregistration; 94 of the 130 biopsies (72.3%) were successful at the first needle pass. The median number of needle passes until a successful biopsy was obtained was one (range, 1-7). CONCLUSION: The described method was successful in obtaining an adequate sample in a phantom Udgivelsesdato: 2008/6

U2 - 10.2214/AJR.07.2587

DO - 10.2214/AJR.07.2587

M3 - Journal article

C2 - 18492923

SN - 0361-803X

VL - 190

SP - 1671

EP - 1674

JO - American Journal of Roentgenology

JF - American Journal of Roentgenology

IS - 6

ER -