Dual-Mode Ultrasound Transducer for Image-Guided Interstitial Thermal Therapy

Bouchoux, Guillaume; Lafon, Cyril; Chapelon, Jean Yves; Fleury, Gilles; Cathignol, D.

doi:10.1016/j.ultrasmedbio.2007.09.011

Cited by 34 publications

(21 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The observation of distortion on the images was consistent with the measurement of protein denaturization during gross histology, and presumably indicates temperature rise in the tissue samples. A similar effect was reported by Bouchoux et al [5]. Figure 4 shows a cross section of protein denaturization that was measured during gross histology.…”

Section: Methodssupporting

confidence: 81%

“…Image guidance assists the placement of the probe in close proximity to or in contact with the targeted tissue, and imaging may also assist the assessment of therapy during or after treatment. The use of dual-mode transducers for ultrasound imaging and therapy aims to improve guidance proximal to the probe, as well as enable treatment monitoring [5,6].…”

Section: Dual-mode 5-element Transducer For Imageguided Interstitial mentioning

confidence: 99%

See 1 more Smart Citation

Dual-mode 5-element transducer for image-guided interstitial ultrasound therapy: In vitro evaluation

Owen¹,

Bouchoux²,

Murillo-Rincon³

et al. 2009

AIP Conference Proceedings

View full text Add to dashboard Cite

Section: Methodssupporting

confidence: 81%

Section: Dual-mode 5-element Transducer For Imageguided Interstitial mentioning

confidence: 99%

Dual-mode 5-element transducer for image-guided interstitial ultrasound therapy: In vitro evaluation

Owen¹,

Bouchoux²,

Murillo-Rincon³

et al. 2009

AIP Conference Proceedings

View full text Add to dashboard Cite

“…In the future, real-time control of the therapy based on MR thermometry is expected to improve the reproducibility of the lesion size [19,[26][27][28] . Ultrasonic transducers capable of both therapy as well as real-time B-mode imaging may also offer more control over lesion size [18,29] . In fact, technical problems occurred for the 3 sites where induced lesions were less than 25 cm 3 in volume and therefore significantly smaller than the others.…”

Section: Discussionmentioning

confidence: 99%

Morphological Analysis of the Interstitial Ultrasonic Ablation in Porcine Liver in vivo

et al. 2008

View full text Add to dashboard Cite

Background: The shape of the induced thermal ablation area is as important as its dimension. The aim of this study was to analyze the size reproducibility and the aspect of the interstitial ultrasonic ablation obtained by a planar transducer in porcine liver in vivo. Methods: Five pigs were used. Two complete ultrasonic lesions were made in each animal under pedicle clamping. All the lesions underwent MR examination on day 7 and then a histological analysis. Results: The tested probe has the advantage of providing a step-by-step and highly directional treatment in the target zone. The ultrasonic lesions presented as well-defined and homogenous areas of tissue coagulation. The lesion volumes ranged from 8.1 to 92.3 cm³ with an averaged lesion length of 56 mm at gross examination. Three-dimensional reconstruction of the lesions from the MR images showed cylindrical and conical shapes. Large intrahepatic vessels distorted the lesion shape, and the vicinity of the application to the liver surface increased significantly the volume of the ultrasonic necrosis. Histological examination showed complete necrosis in the area of damage. Conclusion: The ultrasonic ablation has a regular shape, always with sharply defined borders. However, it showed some variability in the size of the induced lesions.

show abstract

“…Elles procèdent par destruction des tissus. Arrêtons-nous un instant sur les ultrasons thérapeutiques ou HiFU (high intensity focused ultrasound) [23]. Ils font partie, comme l'optique avec les lasers, de techniques permettant de voir (capture d'image) et d'agir (application d'une thérapie) et les transducteurs actuels intègrent ces deux fonctions (Figure 6).…”

Section: Imagerie Et Thérapieunclassified