Name: real-time monitoring of high intensity focused ultrasound (hifu) ablation of in vitro canine livers using harmonic motion imaging for focused ultrasound (hmifu)
Uploaded: 2015-11-03T11:00:00
Description: Watch this Scientific Journal Video about Real-time Monitoring of High Intensity Focused Ultrasound HIFU Ablation of In Vitro Canine Livers Using Harmonic Motion Imaging for Focused Ultrasound HMIFU a

This work was supported by the National Institutes of Health (R01-EB014496). The authors would like to thank Iason Apostolakis for his contribution to the experiments.

이 프로토콜은 컬럼비아 대학의 기관 동물 케어 및 사용위원회에 의해 승인되었다. 모든 데이터 수집 및 처리 매트랩 환경을 사용하여 수행 하였다. 1. 실험 장치 <ol><li> 90 분 동안 생체 개 간 샘플을 드가. 탈기 인산염 완충 용액 (그림 1)로 채워진 탱크에 간 샘플을 넣습니다. 간 사지에서 바늘 음향 흡수에 간 샘플을 수정합니다. </li><li> 4.5 MHz의 중심 주?...

<ol>
	<li>Al-Bataineh, O., Jenne, J., Huber, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Clinical+and+future+applications+of+high+intensity+focused+ultrasound+in+cancer.">Clinical and future applications of high intensity focused ultrasound in cancer.</a> Cancer Treat Rev. 38, 346-353 (2012).</li><li>Dewhirst, M. W., Viglianti, B. L., Lora-Michiels, M., Hanson, M., Hoopes, P. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Basic+principles+of+thermal+dosimetry+and+thermal+thresholds+for+tissue+damage+from+hyperthermia.">Basic principles of thermal dosimetry and thermal thresholds for tissue damage from hyperthermia.</a> Int J Hyperthermia. 19, 267-294 (2003).</li><li>Napoli, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=MR-guided+high-intensity+focused+ultrasound:+current+status+of+an+emerging+technology.">MR-guided high-intensity focused ultrasound: current status of an emerging technology.</a> Cardiovasc Intervent Radiol. 36, 1190-1203 (2013).</li><li>Gudur, M. S., Kumon, R. E., Zhou, Y., Deng, C. X. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=High-frequency+rapid+B-mode+ultrasound+imaging+for+real-time+monitoring+of+lesion+formation+and+gas+body+activity+during+high-intensity+focused+ultrasound+ablation.">High-frequency rapid B-mode ultrasound imaging for real-time monitoring of lesion formation and gas body activity during high-intensity focused ultrasound ablation.</a> IEEE Trans Ultrason Ferroelectr Freq Control. 59, 1687-1699 (2012).</li><li>Jensen, C. R., Cleveland, R. O., Coussios, C. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Real-time+temperature+estimation+and+monitoring+of+HIFU+ablation+through+a+combined+modeling+and+passive+acoustic+mapping+approach.">Real-time temperature estimation and monitoring of HIFU ablation through a combined modeling and passive acoustic mapping approach.</a> Phys Med Biol. 58, 5833-5850 (2013).</li><li>Mariani, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Real+time+shear+waves+elastography+monitoring+of+thermal+ablation:+in+vivo+evaluation+in+pig+livers.">Real time shear waves elastography monitoring of thermal ablation: in vivo evaluation in pig livers.</a> J Surg Res. 188, 37-43 (2014).</li><li>Bing, K. F., Rouze, N. C., Palmeri, M. L., Rotemberg, V. M., Nightingale, K. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Combined+ultrasonic+thermal+ablation+with+interleaved+ARFI+image+monitoring+using+a+single+diagnostic+curvilinear+array:+a+feasibility+study.">Combined ultrasonic thermal ablation with interleaved ARFI image monitoring using a single diagnostic curvilinear array: a feasibility study.</a> Ultrason Imaging. 33, 217-232 (2011).</li><li>Athanasiou, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Breast+lesions:+quantitative+elastography+with+supersonic+shear+imaging--preliminary+results.,+Radiology.">Breast lesions: quantitative elastography with supersonic shear imaging--preliminary results., Radiology.</a> 256, 297-303 (2010).</li><li>Maleke, C., Konofagou, E. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Harmonic+motion+imaging+for+focused+ultrasound+(HMIFU):+a+fully+integrated+technique+for+sonication+and+monitoring+of+thermal+ablation+in+tissues.">Harmonic motion imaging for focused ultrasound (HMIFU): a fully integrated technique for sonication and monitoring of thermal ablation in tissues.</a> Phys Med Biol. 53, 1773-1793 (2008).</li><li>Maleke, C., Konofagou, E. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=In+vivo+feasibility+of+real-time+monitoring+of+focused+ultrasound+surgery+(FUS)+using+harmonic+motion+imaging+(HMI).">In vivo feasibility of real-time monitoring of focused ultrasound surgery (FUS) using harmonic motion imaging (HMI).</a> IEEE Trans Biomed Eng. 57, 7-11 (2010).</li><li>Hou, G. Y., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Sparse+matrix+beamforming+and+image+reconstruction+for+2-D+HIFU+monitoring+using+harmonic+motion+imaging+for+focused+ultrasound+(HMIFU)+with+in+vitro+validation.">Sparse matrix beamforming and image reconstruction for 2-D HIFU monitoring using harmonic motion imaging for focused ultrasound (HMIFU) with in vitro validation.</a> IEEE Trans Med Imaging. 33, 2107-2117 (2014).</li></ol>

HIFU 병변의 실시간 모니터링은 적절하고 효율적인 병변 전달을 보장하는 것이 중요하다. 병변의 형태로서, 조직은 경직 및 여기 하의 움직임 진폭은 감소한다. 조직의 변위를 유도하는 음향 방 사력에 티슈 결과 영역 HIFU 적용. 변위의 상대적인 변화는 조직 강성 상대적으로 변화의 대리입니다. 이 기술은 다른 방법에 기초하여 초음파 대조 처리를 중지하지 않고 HIFU 병변을 모니터링하는 장점을 ?...

High Intensity Focused Ultrasound (HIFU) is a technique that generates temperature elevation at the focal region and can be used to ablate cancerous tissue 1. Temperature elevation at the focus causes thermal lesions in the tissue 2. In order to avoid overtreating a region and to reduce treatment duration, it is imperative to reliably monitor the ablation. Magnetic resonance-guided focused ultrasound (MRgFUS) is the main technique used in clinic to guide and monitor HIFU treatment 3. MRI provides high spatial resolution images of the treated region with tissue displacement or thermal dose but has a frame rate of 0.1-1 Hz and is costly. Several ultrasound-based techniques such as B-mode imaging 4, passive acoustic mapping 5, shear wave imaging 6 and acoustic radiation force impulse 7 have been developed to guide and monitor thermal ablation. However, B-mode imaging and passive acoustic mapping do not provide imaging of mechanical properties of the ablated region which is useful to the operator to improve lesion delivery. 
Shear wave imaging and acoustic radiation force impulse can both characterize the elasticity of the tissue by measuring acoustic radiation force-induced displacements 7,8. However, in both methods, the HIFU treatment is typically interrupted to monitor the ablation. Our group has developed a technique called Harmonic Motion Imaging for Focus Ultrasound (HMIFU) which can monitor the HIFU treatment with ultrasound without stopping the ablation9,10. Briefly, a HIFU transducer sends an amplitude-modulated wave to the region to ablate while simultaneously generating an oscillatory motion in the focal region. A co-axially aligned ultrasound transducer is used to image this oscillation. The magnitude of the induced motion is related to the stiffness of the tissue.
To ensure proper lesion delivery, the temporal resolution of real-time monitoring is of key interest in ablation guidance. Recently, our group has shown real-time streaming of displacement at a frame rate up to 15 Hz, imaged with diverging waves in a narrow field of view and using a fast image reconstruction method 11. Several beamforming techniques can be used to image the displacements. A large field of view can be obtained with diverging wave imaging by changing the delay profile but the axial direction is not aligned with the HIFU beam on the lateral regions and the wave is attenuated due to geometric spreading in the lateral direction, which can affect the quality of the displacement estimation. In contrast, the lateral field of view for plane wave is upper bounded by the active aperture but the axial direction is aligned with the HIFU beam at the focus and there is no geometric spreading in the lateral direction. Depending on the type of application, one or the other imaging method can be selected. The objectives of this protocol are to show how plane wave imaging can provide real-time streaming of displacements images using HMIFU during ablation and to compare the quality of the motion estimation between diverging and plane wave imaging.

<table border="0" cellpadding="0" cellspacing="0">
	<colgroup>
		<col />
		<col />
		<col />
		<col />
	</colgroup>
	<tbody>
		<tr>
			<td>P4-2 Phased array</td>
			<td>ATL</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>H-178 HIFU transducer</td>
			<td>Sonic Concepts</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>3-D positioner</td>
			<td>Velmex Inc.</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>AT33522A function generator</td>
			<td>Agilent Technologies</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>V-1 ultrasound system</td>
			<td>Verasonics</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>3100L RF amplifier</td>
			<td>ENI</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Matching network</td>
			<td>Sonic Concepts</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Degasing system</td>
			<td>Sonic Concepts</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Programming software</td>
			<td>Matlab</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Jacket software package</td>
			<td>Accelereyes</td>
			<td></td>
			<td></td>
		</tr>
	</tbody>
</table>

real-time monitoring of high intensity focused ultrasound (hifu) ablation of in vitro canine livers using harmonic motion imaging for focused ultrasound (hmifu)

집중 초음파에 대한 조화 운동 이미징 (HMIFU)을 수행하고 높은 강도 (HIFU) 절제 초음파를 집중 모니터링 할 수있는 기술이다. 진동 운동은 함수 발생기를 사용하여 25 Hz의 진폭 변조 신호를인가하여 소자 (93) 및 4.5 MHz의 중심 주파수 HIFU 변환기의 포커스에서 생성된다. 68kPa 피크 압력 64 요소 및 2.5 MHz의 촬상 센서는 공 초점으로 무선 주파수 (RF) 채널 데이터를 취득하는 HIFU 변환기의 중앙에 배치된다. 이 프로토콜에서, 시험 관내 개과 간 7 W의 음향 파워 HIFU를 사용하여 열 삭마의 실시간 모니터링을 설명한다. HIFU 치료는 2 분 동안 조직에 도포되며, 절제 영역은 1000 프레임 / 초로 발산 또는 평면파 이미징을 사용하여 실시간으로 이미징된다. RF 채널 데이터의 매트릭스는 화상 재구성에 대한 희소 행렬에 의해 승산된다. 보기의 재구성 필드는 워싱턴을 발산 90 °이다적이 및 평면파 이미징 20mm 및 데이터는 80 MHz에서 샘플링된다. 재구성 4.5 디스플레이 프레임 레이트로 실시간으로 화상하기 위해 그래픽 처리 장치 (GPU)에 대해 수행된다. 재구성 된 RF 데이터의 1-D 정규화 상호 상관이 초점 영역에서의 축 변위를 추정하는 데 사용된다. 초점 심도의 피크 - 투 - 피크 변위 크기 때문에 병변의 형성 티슈의 강성을 나타낸다 열 절제 동안 감소한다. 평면파의 초점 영역의 변위 신호 대 잡음비 (SNR의 D) 그 평면파 촬상를 나타내는 전파를 발산에 비해 1.4 배 높았다 더 변위 웨이브 촬상 발산보다 HMIFU 품질 맵핑 생성하도록 나타난다.

HIFU 어블 동안 HMI 변위 실시간 스트리밍이 발산 및 평면파 이미징을 사용하여 얻을 수있다. (2)도 것은 HIFU 어블 동안 시험관 개과 간에서 평면파 이미징을 사용하여 음향 방 사력 유도 변위의 실시간 표시를 나타내는 영상 화면 캡처이고 . 변위 4.5 Hz의 디스플레이 프레임 레이트로 컴퓨터 화면에 실시간으로 스트리밍된다. 긍정적 인 변위가 파란색에서 붉은 색과 음의 변위로 ?...

Watch this Scientific Journal Video about Real-time Monitoring of High Intensity Focused Ultrasound HIFU Ablation of In Vitro Canine Livers Using Harmonic Motion Imaging for Focused Ultrasound HMIFU a

Real-time Monitoring of High Intensity Focused Ultrasound HIFU Ablation of In Vitro Canine Livers Using Harmonic Motion Imaging for Focused Ultrasound HMIFU

This article describes real-time monitoring of HIFU ablation in canine liver with high frame rate ultrasound imaging using diverging and plane wave imaging. Harmonic Motion Imaging for Focused Ultrasound is used to image the decrease of acoustic radiation force induced displacement in the ablated region.

높은 강도의 실시간 모니터링의 초음파 (HIFU) 절제를 집중<em&gt; 체외</em&gt; 집중 초음파에 대한 조화 운동 이미징을 사용하여 개 간을 (HMIFU)

Harmonic Motion Imaging for Focused Ultrasound (HMIFU) is a technique that can perform and monitor high-intensity focused ultrasound (HIFU) ablation. An ...

Research

JoVE Journal

Bioengineering

Real-time Monitoring of High Intensity Focused Ultrasound (HIFU) Ablation of In Vitro Canine Livers Using Harmonic Motion Imaging for Focused Ultrasound (HMIFU)

Contrast Ultrasound Targeted Treatment of Gliomas in Mice via Drug-Bearing Nanoparticle Delivery and Microvascular Ablation

명암 초음파 마약 베어링 Nanoparticle 배달 및 Microvascular 절제를 통해 마우스에서 Gliomas의 치료 타겟

We are developing minimally-invasive contrast agent microbubble based therapeutic approaches in which the permeabilization and/or ablation of the ...

연구

생체공학

Decellularization and Recellularization of Whole Livers

전체 간은의 Decellularization 및 Recellularization

The liver is a complex organ which requires constant perfusion for delivery of nutrients and oxygen and removal of waste in order to survive1. Efforts to ...

Induction of Adhesion-dependent Signals Using Low-intensity Ultrasound

낮은 강도의 초음파를 사용하여 접착 종속 신호의 유도

In multicellular organisms, cell behavior is dictated by interactions with the extracellular matrix. Consequences of matrix-engagement range from ...

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

광대역 의료 이미징 애플리케이션을위한 초음파의 광 검출기

Optical sensors of ultrasound are a promising alternative to piezoelectric techniques, as has been recently demonstrated in the field of optoacoustic ...

Universal Hand-held Three-dimensional Optoacoustic Imaging Probe for Deep Tissue Human Angiography and Functional Preclinical Studies in Real Time

범용 실시간으로 깊은 조직 인간의 혈관 조영술과 기능 전임상 연구를위한 3 차원 광 음향 이미징 프로브를 손 개최

The exclusive combination of high optical contrast and excellent spatial resolution makes optoacoustics (photoacoustics) ideal for simultaneously ...

Eye Irritation Test (EIT) for Hazard Identification of Eye Irritating Chemicals using Reconstructed Human Cornea-like Epithelial (RhCE) Tissue Model

Eye Irritation Test EIT for Hazard Identification of Eye Irritating Chemicals using Reconstructed Human Cornea-like Epithelial RhCE Tissue Model

복원 된 인간의 각막 모양의 상피 (RHCE) 조직 모델을 사용하여 눈에 자극성 화학 물질의 위험 식별을위한 눈 자극 시험 (EIT)

To comply with the Seventh Amendment to the EU Cosmetics Directive and EU REACH legislation, validated non-animal alternative methods for reliable and ...

Real Time Monitoring of Intracellular Bile Acid Dynamics Using a Genetically Encoded FRET-based Bile Acid Sensor

유전자 인코딩 FRET 기반 담즙 산성 센서를 사용하여 세포 내 담즙 산성 역학의 실시간 모니터링

F&#246;rster Resonance Energy Transfer (FRET) has become a powerful tool for monitoring protein folding, interaction and localization in single cells. ...

Proper Positioning and Restraint of a Rat Hind Limb for Focused High Resolution Imaging of Bone Micro-architecture Using In Vivo Micro-computed Tomography

Proper Positioning and Restraint of a Rat Hind Limb for Focused High Resolution Imaging of Bone Micro-architecture Using In Vivo Micro-computed Tomography

적절 한 위치와 뼈 마이크로 아키텍처를 사용 하 여 생체 내에서 마이크로-단층의 집중된 고해상도 이미징 쥐 뒷 다리의 구속

The use of in vivo micro-computed tomography (&#181;CT) is a powerful tool which involves the non-destructive imaging of internal structures at high ...

Focused Ion Beam Lithography to Etch Nano-architectures into Microelectrodes

마이크로 전극에 에칭 나노 아키텍처에 초점을 맞춘 이온 빔 리소그래피

With advances in electronics and fabrication technology, intracortical microelectrodes have undergone substantial improvements enabling the production of ...

Patient-Specific Polyvinyl Alcohol Phantom Fabrication with Ultrasound and X-Ray Contrast for Brain Tumor Surgery Planning

뇌종양 수술 계획을 위한 초음파 및 엑스레이 대비를 가진 환자 특정 폴리비닐 알콜 팬텀 제조

Phantoms are essential tools for clinical training, surgical planning and the development of novel medical devices. However, it is challenging to create ...