Medial-node models to identify and measure objects in real-time 3-D echocardiography.
Medial-node models to identify and measure objects in real-time 3-D echocardiography.
复制标题
用于在实时 3D 超声心动图中识别和测量对象的内侧节点模型。
DOI：
10.1109/42.811314
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发表时间：
1999
影响因子：
10.6
通讯作者：
Pizer,SM
中科院分区：
文献类型：
--
作者：
Stetten,GD;Pizer,SM
提出了一种自动、快速、稳定地识别和测量三维图像中物体的方法。它是基于从整个图像空间中寻求的中间基元的人口统计得出的局部形状属性。这些形状属性是在对象内的中间位置测量的，包括尺度、方向、端点和中间维度。中间维度是区分球形、圆柱形和板状结构的局部形状属性，中间维度也是可能的。端点是在圆柱体的端部或板的边缘处发现的属性。在应用方面，心脏左心室（LV）在收缩期被建模为一个大的黑暗的圆柱体与epical帽，终止于另一端的薄明亮的板状二尖瓣（MV）。这样的模型，包含中间的形状属性在几个位置，沿着这些位置之间的相对距离和方向，是直观和鲁棒的，并允许自动检测LV轴在体内，使用实时3-D（RT 3D）超声心动图。这些形状属性的统计性质允许它们的提取，即使在存在噪声的情况下，并且允许统计几何测量而无需精确描绘边界，如在RT 3D扫描中确定球囊体积所示。该方法固有的高速度适用于实时临床使用。
A method is proposed for the automatic, rapid, and stable identification and measurement of objects in three-dimensional (3-D) images. It is based on local shape properties derived statistically from populations of medial primitives sought throughout the image space. These shape properties are measured at medial locations within the object and include scale, orientation, endness, and medial dimensionality. Medial dimensionality is a local shape property differentiating sphere-like, cylinder-like, and slab like structures, with intermediate dimensionality also possible. Endness is a property found at the cap of a cylinder or the edge of a slab. In terms of an application, the cardiac left ventricle (LV) during systole is modeled as a large dark cylinder with an epical cap, terminated at the other end by a thin bright slab-like mitral valve (MV). Such a model, containing medial shape properties at just a few locations, along with the relative distances and orientations between these locations, is intuitive and robust and permits automated detection of the LV axis in vivo, using real-time 3-D (RT3D) echocardiography. The statistical nature of these shape properties allows their extraction, even in the presence of noise, and permits statistical geometric measurements without exact delineation of boundaries, as demonstrated in determining the volume of balloons in RT3D scans. The inherent high speed of the method is appropriate for real-time clinical use.
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影响因子：
2.4
作者：
SHATTUCK, DP;WEINSHENKER, MD;VONRAMM, OT
通讯作者：
VONRAMM, OT
影响因子：
4.5
作者：
Pizer, SM;Eberly, D;Morse, BS
通讯作者：
Morse, BS
影响因子：
10.6
作者：
Mikic, I;Krucinski, S;Thomas, JD
通讯作者：
Thomas, JD
核心原子和尺度光谱
影响因子：
4.6
作者：
G. Stetten;R. Landesman;S. Pizer
通讯作者：
S. Pizer
Marching cores：一种从 3D 医学图像中提取核心的方法
DOI：
10.1109/mmbia.1996.534064
发表时间：
1996
期刊：
Proceedings of the Workshop on Mathematical Methods in Biomedical Image Analysis
影响因子：
--
作者：
Jacob Furst;S. Pizer;Dave H. Eberly
通讯作者：
Dave H. Eberly