Axel Adam, Adrian Basarab, Hervé Liebgott, Barbara Nicolas
{"title":"一种用于连续发射超声成像的优化错配滤波器","authors":"Axel Adam, Adrian Basarab, Hervé Liebgott, Barbara Nicolas","doi":"10.1016/j.sctalk.2025.100469","DOIUrl":null,"url":null,"abstract":"<div><div>Current pulse-echo ultrasound imaging techniques provide direct insight into tissue structures but face two key limitations: an upper bounded imaging framerate and an inability to capture phenomena during most of the acquisition time due to a small duty cycle and a short wave-tissue interaction duration. To address these issues, we proposed continuous emission ultrasound imaging (CEUI), demonstrated for motion-mode imaging with a single-input-single-output device.</div><div>CEUI relies on the continuous transmission of an encoded signal, requiring decoding upon reception. Initial evaluations of pulse compression approaches revealed a critical limitation: interference from other emission segments during decoding, causing image quality loss.</div><div>This paper introduces a mismatched filter designed to reduce integrated sidelobe ratio (ISLR) of a specific point spread function of the imaging system. The latter incorporates the impact of emission segments that interfere on a single decoding step. Simulation results show a significant enhancement of the ISLR by 7 dB compared to the matched filter and 5.5 dB compared to classical mismatched filter, while reducing the mainlobe width by 60 % and respectively 25 %.</div></div>","PeriodicalId":101148,"journal":{"name":"Science Talks","volume":"15 ","pages":"Article 100469"},"PeriodicalIF":0.0000,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"An optimized mismatched filter for continuous emission ultrasound imaging\",\"authors\":\"Axel Adam, Adrian Basarab, Hervé Liebgott, Barbara Nicolas\",\"doi\":\"10.1016/j.sctalk.2025.100469\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Current pulse-echo ultrasound imaging techniques provide direct insight into tissue structures but face two key limitations: an upper bounded imaging framerate and an inability to capture phenomena during most of the acquisition time due to a small duty cycle and a short wave-tissue interaction duration. To address these issues, we proposed continuous emission ultrasound imaging (CEUI), demonstrated for motion-mode imaging with a single-input-single-output device.</div><div>CEUI relies on the continuous transmission of an encoded signal, requiring decoding upon reception. Initial evaluations of pulse compression approaches revealed a critical limitation: interference from other emission segments during decoding, causing image quality loss.</div><div>This paper introduces a mismatched filter designed to reduce integrated sidelobe ratio (ISLR) of a specific point spread function of the imaging system. The latter incorporates the impact of emission segments that interfere on a single decoding step. Simulation results show a significant enhancement of the ISLR by 7 dB compared to the matched filter and 5.5 dB compared to classical mismatched filter, while reducing the mainlobe width by 60 % and respectively 25 %.</div></div>\",\"PeriodicalId\":101148,\"journal\":{\"name\":\"Science Talks\",\"volume\":\"15 \",\"pages\":\"Article 100469\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-06-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Science Talks\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2772569325000519\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science Talks","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2772569325000519","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
An optimized mismatched filter for continuous emission ultrasound imaging
Current pulse-echo ultrasound imaging techniques provide direct insight into tissue structures but face two key limitations: an upper bounded imaging framerate and an inability to capture phenomena during most of the acquisition time due to a small duty cycle and a short wave-tissue interaction duration. To address these issues, we proposed continuous emission ultrasound imaging (CEUI), demonstrated for motion-mode imaging with a single-input-single-output device.
CEUI relies on the continuous transmission of an encoded signal, requiring decoding upon reception. Initial evaluations of pulse compression approaches revealed a critical limitation: interference from other emission segments during decoding, causing image quality loss.
This paper introduces a mismatched filter designed to reduce integrated sidelobe ratio (ISLR) of a specific point spread function of the imaging system. The latter incorporates the impact of emission segments that interfere on a single decoding step. Simulation results show a significant enhancement of the ISLR by 7 dB compared to the matched filter and 5.5 dB compared to classical mismatched filter, while reducing the mainlobe width by 60 % and respectively 25 %.