JP2022034304A - 超音波計測装置、超音波計測方法 - Google Patents
超音波計測装置、超音波計測方法 Download PDFInfo
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- 239000000523 sample Substances 0.000 claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims abstract description 48
- 238000005259 measurement Methods 0.000 claims abstract description 35
- 230000001419 dependent effect Effects 0.000 claims abstract description 4
- 238000000691 measurement method Methods 0.000 claims description 15
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/28—Details, e.g. general constructional or apparatus details providing acoustic coupling, e.g. water
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Abstract
Description
Claims (8)
- 超音波プローブを含む計測部と、
前記超音波プローブ内の圧電素子にパルス電圧を印加する送信部と、
前記圧電素子が超音波を受けて生成した電気信号を変換し波形データとして取得する受信部と、
前記送信部および前記受信部を制御する制御部と、を備え、
前記送信部および前記受信部のうち、少なくとも前記受信部に可変整合装置を有し、
前記制御部は、前記受信部が前記電気信号を受信する際の周波数成分値を入力する入力装置と、
前記超音波プローブに対応する整合値の周波数依存性データを格納する記憶装置と、
前記電気信号の周波数を参照して前記可変整合装置を制御する整合制御装置と、を有することを特徴とする超音波計測装置。 - 請求項1に記載の超音波計測装置であって、
前記制御部は、前記送信部から出力されるパルス電圧のパルス幅、繰り返し周波数、増幅値および前記受信部のサンプリング周波数、データ保存タイミングを制御する送受信制御装置を有することを特徴とする超音波計測装置。 - 請求項1に記載の超音波計測装置であって、
前記制御部は、前記電気信号の特定の時間ゲートにおけるピークモニタ、或いは、前記電気信号の周波数解析結果のピーク分析を実施する受信波形評価装置を有することを特徴とする超音波計測装置。 - 請求項1に記載の超音波計測装置であって、
超音波の送受信の制御及び収録条件に必要な値、計測した生波形、処理後の波形、画像再構成結果を表示する表示部を有することを特徴とする超音波計測装置。 - 請求項1に記載の超音波計測装置であって、
前記送信部から複数の異なる周波数のパルス電圧を前記圧電素子に順次印加し、
前記受信部で取得した波形データに基づき被検体を計測することを特徴とする超音波計測装置。 - 超音波を用いて被検体の計測を行う超音波計測方法であって、
超音波の受信周波数の入力を計測条件の一つとして読み込むステップと、
前記受信周波数に基づいて、超音波の受信側の可変整合回路のインピーダンス調整を実施するステップと、
を有することを特徴とする超音波計測方法。 - 請求項6に記載の超音波計測方法であって、
受信波形を周波数解析するステップと、
前記周波数解析結果のピーク分析及び抽出を実施するステップと、
前記抽出した周波数を再度計測条件として入力するステップと、
前記抽出した周波数に基づいて超音波の受信部の可変整合のインピーダンス調整を実施するステップと、
を有することを特徴とする超音波計測方法。 - 請求項6に記載の超音波計測方法であって、
複数の異なる周波数の超音波を前記被検体に印加し、
前記被検体から取得した波形データに基づき被検体を計測することを特徴とする超音波計測方法。
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JPH0584245A (ja) * | 1991-09-30 | 1993-04-06 | Shimadzu Corp | 超音波診断装置 |
JP2000287969A (ja) | 1999-04-05 | 2000-10-17 | Sekisui Chem Co Ltd | 骨粗鬆症測定装置 |
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