JP2015123181A5

JP2015123181A5 -

Info

Publication number: JP2015123181A5
Application number: JP2013268688A
Authority: JP
Filing date: 2013-12-26
Publication date: 2017-01-12
Anticipated expiration: 2033-12-26

Description

本発明の超音波画像撮像装置は、被検体の超音波画像を取得する超音波探触子と、前記被検体のボリュームデータを記憶するボリュームデータ記憶部と、前記超音波画像における穿刺対象の位置と前記ボリュームデータにおける前記穿刺対象の位置とを位置合わせした前記超音波探触子の位置を検出する第１の位置センサと、前記穿刺対象に穿刺される穿刺針の位置及び方向を検出する第２の位置センサと、前記位置センサと前記位置センサとの位置関係に基づいて、前記ボリュームデータにおける前記穿刺針の位置及び方向を演算する穿刺情報演算部と、前記ボリュームデータに基づいて前記被検体の３次元画像を表示し、前記穿刺針の位置及び方向を前記３次元画像に表示する表示部とを備える。
An ultrasonic imaging apparatus of the present invention includes an ultrasonic probe that acquires an ultrasonic image of a subject, a volume data storage unit that stores volume data of the subject, and a position of a puncture target in the ultrasonic image A first position sensor that detects a position of the ultrasonic probe that aligns the position of the puncture target in the volume data and a position and direction of a puncture needle that is punctured into the puncture target. and 2 position sensors, based on the positional relationship between the position sensor and the position sensor, and the puncture information calculation unit for calculating the position and orientation of the biopsy needle in the volume data, the object based on the volume data And a display unit for displaying the position and direction of the puncture needle on the three-dimensional image.

超音波画像生成部１４は、受波回路１３により受波された超音波信号から超音波画像を生成する。超音波画像生成部１４は、被検体１００の内部の２次元超音波画像（断層画像）又は３次元超音波画像を生成する。整相加算回路１５は、受波回路１３で増幅された超音波信号の位相を制御し、ＲＦ信号フレームデータを形成する。信号処理部１６は、整相加算回路１５からのＲＦ信号フレームデータを入力して、ゲイン補正、ログ補正、検波、輪郭強調、及びフィルタ処理などの各種信号処理を行う。スキャンコンバータ１７は、信号処理部１６から出力されるＲＦ信号フレームデータを超音波周期で取得し、映像信号に変換する。スキャンコンバータ１７は、信号処理部１６からのＲＦ信号フレームデータをデジタル信号に変換して断層画像データを生成するA／D変換器と、A／D変換器によりデジタル化された断層画像データを記憶するフレームメモリとを含む。

The ultrasonic image generation unit 14 generates an ultrasonic image from the ultrasonic signal received by the wave receiving circuit 13 . The ultrasonic image generation unit 14 generates a two-dimensional ultrasonic image (tomographic image) or a three-dimensional ultrasonic image inside the subject 100. The phasing addition circuit 15 controls the phase of the ultrasonic signal amplified by the wave receiving circuit 13 to form RF signal frame data. The signal processing unit 16 receives the RF signal frame data from the phasing addition circuit 15 and performs various signal processing such as gain correction, log correction, detection, contour enhancement, and filter processing. The scan converter 17 acquires the RF signal frame data output from the signal processing unit 16 at an ultrasonic cycle and converts it into a video signal. The scan converter 17 converts the RF signal frame data from the signal processing unit 16 into a digital signal to generate tomographic image data, and stores the tomographic image data digitized by the A / D converter. Frame memory.

Claims

An ultrasound probe for acquiring an ultrasound image of the subject;
A volume data storage unit for storing volume data of the subject;
A first position sensor for detecting a position of the ultrasonic probe obtained by aligning a position of the puncture target in the ultrasonic image and a position of the puncture target in the volume data;
A second position sensor for detecting a position and direction of a puncture needle to be punctured into the puncture target;
A puncture information calculation unit that calculates the position and direction of the puncture needle in the volume data based on the positional relationship between the first position sensor and the second position sensor ;
An ultrasonic imaging apparatus comprising: a display unit configured to display a three-dimensional image of the subject based on the volume data and to display a position and a direction of the puncture needle on the three-dimensional image.

A puncture route computing unit for computing a puncture route of the puncture needle in the volume data based on the position and direction of the puncture needle detected by the second position sensor;
The ultrasonic image capturing apparatus according to claim 1, wherein the display unit displays a cross section including the insertion path in the three-dimensional image.

The ultrasonic image imaging apparatus according to claim 2, wherein the display unit displays the cross section including the position of the ultrasonic probe and the insertion path on the three-dimensional image.

The ultrasonic image imaging apparatus according to claim 2, wherein the display unit displays the tomographic image of the cross section based on at least one of the ultrasonic image and the volume data.

The insertion path calculation unit calculates the insertion paths of the plurality of puncture needles,
The ultrasonic wave according to any one of claims 2 to 4, wherein the display unit displays the plurality of cross sections corresponding to the plurality of insertion paths on the three-dimensional image in different colors. Imaging device.

The insertion path calculation unit calculates the insertion paths of the plurality of puncture needles,
The display unit displays a plurality of the cross sections corresponding to the plurality of insertion paths in the three-dimensional image, and displays intersection lines where the plurality of cross sections intersect in the tomographic image. The ultrasonic imaging apparatus according to 4 or 5.

A cautery device that is provided at the tip of the puncture needle and cauterizes the puncture target;
An ablation position calculator that calculates the ablation position of the ablation device in the volume data based on the position and direction of the puncture needle detected by the second position sensor;
A cautery range calculation unit that calculates the cauterization range of the puncture target based on the cauterization information of the cauterization device,
The ultrasonic image capturing apparatus according to claim 1, wherein the display unit displays the ablation range on the three-dimensional image.

A plurality of ablation devices each provided at the tip of a plurality of puncture needles for ablating the puncture target;
An ablation position calculator that calculates the ablation positions of the ablation devices in the volume data based on the positions and directions of the plurality of puncture needles detected by the second position sensor;
The ultrasonic image capturing apparatus according to any one of claims 1 to 7, wherein the display unit displays a range between the ablation positions as the ablation range on the three-dimensional image.

Acquire an ultrasound image of the subject,
Storing volume data of the subject;
Detecting the position of the ultrasonic probe in which the position of the puncture target in the ultrasonic image and the position of the puncture target in the volume data are aligned,
Detecting the position and direction of the puncture needle to be punctured into the puncture target;
Based on the position of the ultrasonic probe and the position and direction of the puncture needle, the position and direction of the puncture needle in the volume data are calculated,
Displaying a three-dimensional image of the subject based on the volume data;
An ultrasonic imaging method, wherein the position and direction of the puncture needle are displayed on the three-dimensional image.