{"title":"分辨率，仪器控制和人工制品","authors":"D. Sidebotham, A. Merry, M. Legget, Gavin Wright","doi":"10.1093/med/9780198759089.003.0002","DOIUrl":null,"url":null,"abstract":"In Chapter 2, the factors that influence image quality are reviewed. The first part of the chapter deals with the determinants of spatial and temporal resolution, particularly with respect to 2D and 3D imaging. Next, instrument controls for different ultrasound imaging modes are discussed. Here the emphasis is on adjusting the machine settings to optimize image quality, and recognizing and avoiding aliasing with PW Doppler imaging. Finally, common artefacts that may lead to misdiagnosis are discussed.","PeriodicalId":153040,"journal":{"name":"Practical Perioperative Transoesophageal Echocardiography","volume":"34 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Resolution, instrument controls, and artefacts\",\"authors\":\"D. Sidebotham, A. Merry, M. Legget, Gavin Wright\",\"doi\":\"10.1093/med/9780198759089.003.0002\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In Chapter 2, the factors that influence image quality are reviewed. The first part of the chapter deals with the determinants of spatial and temporal resolution, particularly with respect to 2D and 3D imaging. Next, instrument controls for different ultrasound imaging modes are discussed. Here the emphasis is on adjusting the machine settings to optimize image quality, and recognizing and avoiding aliasing with PW Doppler imaging. Finally, common artefacts that may lead to misdiagnosis are discussed.\",\"PeriodicalId\":153040,\"journal\":{\"name\":\"Practical Perioperative Transoesophageal Echocardiography\",\"volume\":\"34 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Practical Perioperative Transoesophageal Echocardiography\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1093/med/9780198759089.003.0002\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Practical Perioperative Transoesophageal Echocardiography","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1093/med/9780198759089.003.0002","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
In Chapter 2, the factors that influence image quality are reviewed. The first part of the chapter deals with the determinants of spatial and temporal resolution, particularly with respect to 2D and 3D imaging. Next, instrument controls for different ultrasound imaging modes are discussed. Here the emphasis is on adjusting the machine settings to optimize image quality, and recognizing and avoiding aliasing with PW Doppler imaging. Finally, common artefacts that may lead to misdiagnosis are discussed.
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