Method and medical imaging apparatus for examination of human or animal body

一种动物体、人体的技术，应用在医药科学、血压测量装置、血流量测量装置等方向，能够解决方法无法建立等问题，达到提高安全性的效果

Inactive Publication Date: 2009-06-03
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Most of the methods described therein cannot be established

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  • Method and medical imaging apparatus for examination of human or animal body
  • Method and medical imaging apparatus for examination of human or animal body
  • Method and medical imaging apparatus for examination of human or animal body

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Embodiment Construction

[0049] FIG. 1 schematically shows the blood flow in the pulmonary artery PA with characteristic asymmetric fluid properties at a moment of diastole after the closure of the pulmonary valve PV. This asymmetry relates to differences in the fluid properties about the longitudinal axis 11 of the pulmonary artery in the anterior-posterior direction. RV indicates the outflow side of the right ventricle, letters a and p indicate anterior and posterior, respectively. The blood flow in the pulmonary artery PA is thus displayed in a substantially radial plane. It can be clearly seen that the blood flow in the anterior third of the pulmonary artery PA is parallel to the anterior wall 13 of the pulmonary artery PA. This blood flow is significantly stronger than that in the posterior third of the pulmonary artery PA. When such fluid properties are present for a certain duration in diastole after the closure of the pulmonary valve PV, it means that the patient under examination suffers fr...

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Abstract

The present invention relates to a method for for examination and evaluation of a human or animal body as regards a blood flow in a pulmonary artery, including the steps of (a) recording measurement data, from which at least a part of the blood flow in the pulmonary artery is able to be re-constructed at least two-dimensionally in a plane defined by a longitudinal axis of the pulmonary artery and by an anterior-posterior direction, including at least at several diastolic points in time in the course of a heart cycle, after a closure of the pulmonary valve; (b) analyzing the measurement data, as to how many of the at least several diastolic points in time in the flow behavior of the blood flow of the pulmonary artery an asymmetry in relation to the longitudinal axis of the pulmonary artery in the anterior-posterior direction exists; (c) determining a measure that characterizes how long, after the closure of the pulmonary valve in the flow behavior of the blood flow of the pulmonary artery, the aforementioned asymmetry exists. The invention also relate to a medical imaging apparatus for implementing the method.

Description

technical field [0001] The invention relates to a method for examining the blood flow in the pulmonary artery of a human or animal body. Furthermore, the invention relates to a medical imaging device for carrying out such a method. This method is especially suitable for the examination of patients with pulmonary hypertension (pulmonale hypertonie) or suspected pulmonary hypertension or a state of pulmonary hypertension under physical stress. Background technique [0002] Pulmonary hypertension (hereinafter referred to as "PH") is a disease characterized by elevated pulmonary vascular pressure. Pulmonary arterial hypertension (hereinafter referred to as "PAH") is a subgroup of PH. The definition of PAH has been established in general guidelines. It is related to mean median pulmonary artery pressure (mPAP) rather than systolic pulmonary artery pressure, and excludes underlying diseases such as severe pulmonary or left heart disease. PAH is present when mean pulmonary arte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0215A61B5/026A61B5/055A61B8/04A61B8/06
CPCA61B8/06A61B5/055A61B5/021A61B5/7289A61B5/0263A61B5/7207
Inventor 加博·科瓦克斯霍斯特·奥尔谢夫斯基格特·赖特厄休拉·赖特雷纳·K·林米勒
Owner SIEMENS AG
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