This editorial elaborates on the current and future applications of linear endoscopic ultrasound(EUS),a substantial diagnostic and therapeutic modality for various anatomical regions.The scope of endosonographic asses...This editorial elaborates on the current and future applications of linear endoscopic ultrasound(EUS),a substantial diagnostic and therapeutic modality for various anatomical regions.The scope of endosonographic assessment is broad and,among other factors,allows for the evaluation of the mediastinal anatomy and related pathologies,such as mediastinal lymphadenopathy and the staging of central malignant lung lesions.Moreover,EUS assessment has proven more accurate in detecting small lesions missed by standard imaging examinations,such as computed tomography or magnetic resonance imaging.We focus on its current uses in the mediastinum,including lung and esophageal cancer staging,as well as evaluating mediastinal lymphadenopathy and submucosal lesions.The editorial also explores future perspectives of EUS in mediastinal examination,including ultrasound-guided therapies,artificial intelligence integration,advancements in mediastinal modalities,and improved diagnostic approaches for various mediastinal lesions.展开更多
The gallbladder(GB)is a susceptible organ,prone to various pathologies that can be identified using different imaging techniques.Transabdominal ultrasound(TUS)is typically the initial diagnostic method due to its nume...The gallbladder(GB)is a susceptible organ,prone to various pathologies that can be identified using different imaging techniques.Transabdominal ultrasound(TUS)is typically the initial diagnostic method due to its numerous well-established advantages.However,in cases of uncertainty or when a definitive diagnosis cannot be established,computed tomography(CT)or magnetic resonance imaging may be employed to provide more detailed information.Nevertheless,CT scans may sometimes offer inadequate spatial resolution,which can limit the differentiation of GB lesions,particularly when smaller yet clinically relevant abnormalities are involved.Conversely,endoscopic ultrasound(EUS)provides higher frequency compared to TUS,superior spatial resolution,and the option for contrast-enhanced harmonic imaging,enabling a more comprehensive examination.Thus,EUS can serve as a supplementary tool when conventional imaging methods are insufficient.This review will describe the standard EUS examination of the GB,focusing on its endosonographic characteristics in various GB path-ologies.展开更多
As a hybrid imaging modality that combines optical excitation with acoustic detection,photoacoustic tomography(PAT)has become one of the fastest growing biomedical imaging modalities.Among various types of transducer ...As a hybrid imaging modality that combines optical excitation with acoustic detection,photoacoustic tomography(PAT)has become one of the fastest growing biomedical imaging modalities.Among various types of transducer arrays used in a PAT system conguration,the linear array is the most commonly utilized due to its convenience and low-cost.Although linear array-based PAT has been quickly developed within the recent decade,there are still two major challenges that impair the overall performance of the PAT imaging system.Therst challenge is that the three-dimensional(3D)imaging capability of a linear array is limited due to its poor elevational resolution.The other challenge is that the geometrical shape of the linear array constrains light illumination.To date,substantial e®orts have been made to address the aforementioned challenges.This review will present current technologies for improving the elevation resolution and light delivery of linear array-based PAT systems.展开更多
目的研究通过高频超声显示肝包膜及肝实质结构变化来检测早期肝硬变的情况。方法随机选择肝穿患者150例,其中病理确诊肝硬化24例。分别用低频凸阵探头及高频线阵超声探查肝脏包膜及部分肝实质。使用的仪器是HDI 5000 Sono CT,凸阵探头频...目的研究通过高频超声显示肝包膜及肝实质结构变化来检测早期肝硬变的情况。方法随机选择肝穿患者150例,其中病理确诊肝硬化24例。分别用低频凸阵探头及高频线阵超声探查肝脏包膜及部分肝实质。使用的仪器是HDI 5000 Sono CT,凸阵探头频率2～5MHz,线阵探头频率5～12MHz。结果高频超声显示肝硬化患者肝包膜不光滑,实质呈斑片状或多发强弱不匀回声光团。低频凸阵探头仅显示肝实质光点增粗,回声不均。结论高频超声能较精确地显示肝脏表面及部分肝实质较细微的改变,利用高频超声的良好的空间及时间分辨率弥补了凸阵探头探查肝脏表面的技术缺陷。肝脏表面不平滑及肝实质多发强弱不均回声光斑可能是肝硬化早期病变的重要的诊断指标。展开更多
文摘This editorial elaborates on the current and future applications of linear endoscopic ultrasound(EUS),a substantial diagnostic and therapeutic modality for various anatomical regions.The scope of endosonographic assessment is broad and,among other factors,allows for the evaluation of the mediastinal anatomy and related pathologies,such as mediastinal lymphadenopathy and the staging of central malignant lung lesions.Moreover,EUS assessment has proven more accurate in detecting small lesions missed by standard imaging examinations,such as computed tomography or magnetic resonance imaging.We focus on its current uses in the mediastinum,including lung and esophageal cancer staging,as well as evaluating mediastinal lymphadenopathy and submucosal lesions.The editorial also explores future perspectives of EUS in mediastinal examination,including ultrasound-guided therapies,artificial intelligence integration,advancements in mediastinal modalities,and improved diagnostic approaches for various mediastinal lesions.
文摘The gallbladder(GB)is a susceptible organ,prone to various pathologies that can be identified using different imaging techniques.Transabdominal ultrasound(TUS)is typically the initial diagnostic method due to its numerous well-established advantages.However,in cases of uncertainty or when a definitive diagnosis cannot be established,computed tomography(CT)or magnetic resonance imaging may be employed to provide more detailed information.Nevertheless,CT scans may sometimes offer inadequate spatial resolution,which can limit the differentiation of GB lesions,particularly when smaller yet clinically relevant abnormalities are involved.Conversely,endoscopic ultrasound(EUS)provides higher frequency compared to TUS,superior spatial resolution,and the option for contrast-enhanced harmonic imaging,enabling a more comprehensive examination.Thus,EUS can serve as a supplementary tool when conventional imaging methods are insufficient.This review will describe the standard EUS examination of the GB,focusing on its endosonographic characteristics in various GB path-ologies.
基金supported in part by the Career Catalyst Research Grant from the Susan G.Komen Foundation(No.CCR17481211).
文摘As a hybrid imaging modality that combines optical excitation with acoustic detection,photoacoustic tomography(PAT)has become one of the fastest growing biomedical imaging modalities.Among various types of transducer arrays used in a PAT system conguration,the linear array is the most commonly utilized due to its convenience and low-cost.Although linear array-based PAT has been quickly developed within the recent decade,there are still two major challenges that impair the overall performance of the PAT imaging system.Therst challenge is that the three-dimensional(3D)imaging capability of a linear array is limited due to its poor elevational resolution.The other challenge is that the geometrical shape of the linear array constrains light illumination.To date,substantial e®orts have been made to address the aforementioned challenges.This review will present current technologies for improving the elevation resolution and light delivery of linear array-based PAT systems.
文摘目的研究通过高频超声显示肝包膜及肝实质结构变化来检测早期肝硬变的情况。方法随机选择肝穿患者150例,其中病理确诊肝硬化24例。分别用低频凸阵探头及高频线阵超声探查肝脏包膜及部分肝实质。使用的仪器是HDI 5000 Sono CT,凸阵探头频率2～5MHz,线阵探头频率5～12MHz。结果高频超声显示肝硬化患者肝包膜不光滑,实质呈斑片状或多发强弱不匀回声光团。低频凸阵探头仅显示肝实质光点增粗,回声不均。结论高频超声能较精确地显示肝脏表面及部分肝实质较细微的改变,利用高频超声的良好的空间及时间分辨率弥补了凸阵探头探查肝脏表面的技术缺陷。肝脏表面不平滑及肝实质多发强弱不均回声光斑可能是肝硬化早期病变的重要的诊断指标。
