Development of Real-time MR imaging and Visualization System to Improve MR-guided Prostate Biopsy
Development of Real-time MR imaging and Visualization System to Improve MR-guided Prostate Biopsy
批准号:
10308009
负责人:
James Nolan Ahad
金额:
$5.18万
依托单位国家:
美国
项目类别:
财政年份:
2020
资助国家:
美国
项目状态:
已结题
起止时间:
2020-01-01 至 2022-12-31
关键词:
3-DimensionalAddressAdoptionAnxietyAppearanceAugmented RealityBiopsyCharacteristicsClinicalCollectionComplexComputer SimulationComputer softwareConsumptionCoupledDataData SetDetectionDevelopmentDiagnosisDiagnosticDiagnostic ImagingDiagnostic ProcedureDiseaseEnsureFailureFatigueGeometryGoalsHistologicImageImaging PhantomsImaging TechniquesImaging technologyInterventionIntuitionLeadLesionMagnetic ResonanceMagnetic Resonance ImagingMalignant NeoplasmsMalignant neoplasm of prostateManualsMethodologyMethodsMotionNeedle biopsy procedureNeedlesPathway interactionsPatientsPilot ProjectsPositioning AttributeProceduresProcessProstateRecoveryResearchResolutionRiskSamplingSampling ErrorsScanningSpeedSystemT2 weighted imagingTechniquesThree-Dimensional ImageTimeTissuesTrainingTransrectal UltrasoundUniversitiesVisualVisualizationWorkbasecancer diagnosisclinical diagnosisclinically significantcontrast imagingdata visualizationhead mounted displayhologramholographic visualizationimage guidedimage reconstructionimage registrationimage visualizationimaging approachimaging modalityimprovedin vivo evaluationinnovationmethod developmentnovelovertreatmentpatient populationpreventprostate biopsyprostate lesionsradiologistreal-time imagesreconstructionside effectspatial relationshiptemporal measurementthree dimensional structuretoolvisual feedback
中文摘要
摘要
磁共振引导的前列腺腔内机架活检是一种最先进的技术,
其他前列腺活检方法,包括提高病变靶向准确性和减少副作用,
更短的恢复时间然而,由于各种原因,执行该过程是困难且耗时的。
因素用于引导针的高分辨率T2-T4加权图像具有较长的采集时间,
缓慢的针调整。此外,磁共振成像引导活检中的引导依赖于支持软件,
由于活检计划和引导图像之间的不同几何形状而导致的误差。人工视觉引导,
通常是为了补偿支持软件的错误,由于视觉速度慢,
反馈,导致重复引导图像扫描,从而延长手术时间。因此,一种新的方法,
在磁共振成像引导的前列腺活检中,接近成像和数据可视化是减少
程序的复杂性和持续时间,并改善患者对该诊断技术的可及性。
磁共振成像引导活检中的引导图像需要40- 60秒来采集。案件取得的进展
西储大学(CWRU)MRI研究小组已经实现了快速成像,
收藏超过100倍。快速MR方法开发将建立在当前使用的快速旋转基础上
回波成像方法学和集成的非常规传统数据采样技术的进步,
并行成像,以便能够在几秒钟内收集引导图像。快速获取引导图像
将提供优于当前技术的时间分辨率,具有足够的图像质量,
磁共振引导前列腺穿刺活检的靶点定位。
快速图像采集提高了磁共振前列腺成像中视觉反馈的时间分辨率
活检,手术复杂性源于计划和引导之间不同成像平面的成像
图像和在这些图像中具有不足对比度的靶病变。非刚性图像配准将
不仅能够实现计划和引导图像之间的视觉融合,还能够实现更高质量的术前活检
诊断图像,为病变靶向提供更好的组织对比度。增强现实全息
渲染将与图像配准结合实施,以可视化复杂的3D空间
不同图像数据集之间的关系。图像配准与全息技术的结合
可视化将在MR引导的前列腺活检期间提供更多信息丰富的空间信息,
放射科医生更好地利用他们训练有素的直觉,从而减少程序的复杂性和依赖
用于病变定位的支持软件。
总之,本文提出的快速MR成像和增强现实可视化技术将减少
手术时间和难度,从而有助于增加MR引导前列腺的采用率和患者可及性
活检
英文摘要
Abstract
MR-guided in-gantry prostate biopsy is a state-of-the-art technique that has considerable advantages over
other prostate biopsy methods, including increased lesion targeting accuracy and fewer side effects with
shorter recovery times. However, performing the procedure is difficult and time-consuming due to a variety of
factors. High-resolution T2-weighted images used to guide the needle have long acquisition times resulting in
slow needle adjustments. Furthermore, guidance in MR-guided biopsy relies on support software that is prone
to error due to different geometry between biopsy planning and guidance images. Manual visual guidance,
often done to compensate for errors with support software, can be inaccurate due to slow pace of visual
feedback, leading to repeat guidance image scans and thus longer procedure times. Hence, a new way to
approach imaging and visualization of data in MR-guided prostate biopsy is a necessary step to reduce
procedure complexity and duration and improve patient accessibility to this diagnostic technique.
A guidance image in MR-guided biopsy requires 40-60 seconds to acquire. Progress made in Case
Western Reserve University (CWRU) MRI research group has enabled fast imaging that can accelerate image
collection by more than a hundred-fold. Fast MR method development will build upon currently utilized fast spin
echo imaging methodology and integrate advancements in non-traditional data sampling techniques and
parallel imaging to enable collection of guidance images in a few seconds. Rapidly acquired guidance images
will provide superior temporal resolution to current technique with sufficient image quality to enable accurate
targeting of lesions in MR-guided prostate biopsy.
While fast image acquisition improves the temporal resolution of visual feedback in MR-guided prostate
biopsy, procedure complexity arises from imaging in different imaging planes between planning and guidance
images and targeting lesions that have insufficient contrast in these images. Non-rigid image registration will
enable visual fusion between not only planning and guidance images, but also higher quality pre-biopsy
diagnostic images which provide better tissue contrast for lesion targeting. Augmented reality holographic
rendering will be implemented in conjunction with image registration to visualize the complex 3D spatial
relationships between the different image datasets. The combination of image registration and holographic
visualization will provide more informative spatial information during MR-guided prostate biopsy, allowing
radiologists to better utilize their trained intuition and thus reducing procedure complexity and reliance on
support software for lesion targeting.
Together, fast MR imaging and augmented reality visualization techniques proposed herein will reduce
procedure time and difficulty, thereby helping increase adoption and patient accessibility to MR-guided prostate
biopsy.
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Development of Real-time MR imaging and Visualization System to Improve MR-guided Prostate Biopsy
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批准号:9911196
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项目类别:
-
资助金额:$5.05万
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财政年份:2020
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负责人:James Nolan Ahad
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依托单位:
海外基金