BACKGROUND:The use of ultrasound(US)within healthcare has inspired the development of new US technology.There have been few studies comparing the use of handheld US to standard US for medical education.This research a...BACKGROUND:The use of ultrasound(US)within healthcare has inspired the development of new US technology.There have been few studies comparing the use of handheld US to standard US for medical education.This research aims to determine whether a handheld US device can provide a comparable primary learning experience to that of a standard US machine.METHODS:Over two days of instruction,participants were taught and evaluated on core US fundamentals.The standard group received instruction on standard US machines,while the handheld group received instruction on handheld US devices.Participants completed a qualitative survey regarding their experience.Six hundred and four images were obtained and graded by two emergency medicine physicians.RESULTS:A total of 119 Swiss medical students were enrolled in our study.There was no statistically significant difference in the US assessment measurements,except for faster endpoint septal separation(EPSS)vascular setup time in the handheld group(P=0.001).There was no statistically significant difference in participants’perceived difficulty of US learning(P=0.198),comfort level(P=0.188),or self-estimated capability to perform US in the future(P=0.442).There was no statistically significant difference in the percentage of correctly obtained images(P=0.211)or images that were clinically useful(P=0.256).The median quality score of images obtained by the standard group was eight compared to seven in handheld group(P<0.01).CONCLUSION:Our data suggest a handheld US machine can perform as well as a standard US machine as an educational tool despite sacrifices in image quality.展开更多
<b>Introduction:</b> Ultrasound facilitates neuraxial puncture in obese parturients. Unfortunately, the widespread adoption of neuraxial ultrasound may be limited by the lack of technical expertise or the ...<b>Introduction:</b> Ultrasound facilitates neuraxial puncture in obese parturients. Unfortunately, the widespread adoption of neuraxial ultrasound may be limited by the lack of technical expertise or the limited availability of the equipment. A wireless portable ultrasound device (Accuro, Rivanna Medical, Charlottesville, VA) with automated pattern recognition software (SpineNav3DTM technology) has been introduced to obtain the automated real-time identification of interspaces and epidural depth. The primary objective of this study was to assess the accuracy of the SpineNav3DTM ultrasound technology (Accuro) in estimating the epidural space depth compared to the standard ultrasound examination in pregnant obese patients. The secondary aim was to compare the ultrasound measurements with the measured needle depth during epidural and spinal insertion. <b>Methods:</b> The study was conducted at S Gerardo Hospital, Monza, Italy from March 2021 to April 2021. Obese laboring women requesting epidural analgesia or undergoing elective cesarean delivery under spinal anesthesia were recruited. All the subjects had their lumbar area scanned for the measurements of the depth of the epidural space by the SpineNav3DTM ultrasound technology and by the standard US and then both compared with the needle insertion depth in a double-blind fashion. <b>Results:</b> Forty-eight women were enrolled in the study. There was agreement (±0.25 cm) between the epidural depth (in cm) measured with the Accuro, versus the standard ultrasound. There was a significant difference between the mean depth of epidural space s measured by Accuro or Standard US and needle insertion depth (P < 0.001). <b>Conclusions:</b> The handheld ultrasound system with 3D spine navigation technology can automatically identify and measure the epidural depth with the same accuracy as the standard ultrasounds in obese pregnant women.展开更多
目的:探讨自动乳腺容积成像技术(automated breast volume scanner, ABVS)与常规手持超声(handheld ultrasound,HHUS)对乳腺BI-RADS 3～5类病变的分类评估价值。方法:回顾性分析我院2016年10月至2017年6月期间对109个乳腺病灶进行自动...目的:探讨自动乳腺容积成像技术(automated breast volume scanner, ABVS)与常规手持超声(handheld ultrasound,HHUS)对乳腺BI-RADS 3～5类病变的分类评估价值。方法:回顾性分析我院2016年10月至2017年6月期间对109个乳腺病灶进行自动乳腺容积成像技术与常规手持超声的影像资料,基于乳腺影像报告和数据系统(Breast Imaging Reporting and Data System,BI-RADS)分别对病变进行分类评定,以病理诊断为标准,将BI-RADS分类为3、4A、4B、4C、5类的良性病变分别评为5、4、3、2、1分。将BI-RADS分类为3、4A、4B、4C、5类的恶性病变分别评为1、2、3、4、5分。结果:92例患者109个乳腺病灶,80个恶性病灶,29个良性病灶。29个良性病灶包括纤维腺瘤12例、腺病瘤7例、复杂性囊肿3例、浆细胞性乳腺炎2例、肉芽肿性乳腺炎1例、导管内乳头状瘤1例、良性叶状肿瘤1例、小叶增生性腺病并放射状瘢痕1例、硬化性腺病1例;ABVS评价为5、4、3、2、1分的分别为24、1、2、2、0个,HHUS评价为5、4、3、2、1分的分别为19、8、1、1、0个。80个恶性病变包括导管内原位癌2例、非浸润性癌5例、早期浸润癌10例、浸润性非特殊癌39例、浸润性特殊癌24例;ABVS评价为5、4、3、2、1分的分别为17、35、22、6、0个,HHUS评价为5、4、3、2、1分的分别为12、25、31、10、2个。将ABVS与HHUS对乳腺病变的BI-RADS分类评分进行对比分析,Z=-3.069,P=0.002,差异有统计学意义。结论:ABVS能准确的对乳腺BI-RADS 3～5类病变进行分类评估,且ABVS较HHUS具有整体性强、可重复率高、操作者依赖性小、不易漏诊等优点,因而可以作为一种乳腺BI-RADS分类评估的常规检查方法。展开更多
自动乳腺超声诊断系统(Automatic breast ultrasound system,ABUS)是近年来乳腺超声检查的一项新技术,具有图像标准化、操作可重复性高以及获得冠状面信息等优点。由于其图像采集与图像解读可独立进行,因此可提高超声医师工作效率。ABU...自动乳腺超声诊断系统(Automatic breast ultrasound system,ABUS)是近年来乳腺超声检查的一项新技术,具有图像标准化、操作可重复性高以及获得冠状面信息等优点。由于其图像采集与图像解读可独立进行,因此可提高超声医师工作效率。ABUS不仅可用作乳腺癌的筛查工具,在诊断性能上,其高质量的冠状面成像有助于鉴别病变良恶性;自动优化成像还可提高了乳腺病变的检出率。除此之外,它可对乳腺癌分子亚型进行预测,在新辅助化疗效果评估中有一定应用价值。本文对ABUS关于乳腺癌方面的临床应用研究进行综述,并探讨其未来更多应用。展开更多
文摘BACKGROUND:The use of ultrasound(US)within healthcare has inspired the development of new US technology.There have been few studies comparing the use of handheld US to standard US for medical education.This research aims to determine whether a handheld US device can provide a comparable primary learning experience to that of a standard US machine.METHODS:Over two days of instruction,participants were taught and evaluated on core US fundamentals.The standard group received instruction on standard US machines,while the handheld group received instruction on handheld US devices.Participants completed a qualitative survey regarding their experience.Six hundred and four images were obtained and graded by two emergency medicine physicians.RESULTS:A total of 119 Swiss medical students were enrolled in our study.There was no statistically significant difference in the US assessment measurements,except for faster endpoint septal separation(EPSS)vascular setup time in the handheld group(P=0.001).There was no statistically significant difference in participants’perceived difficulty of US learning(P=0.198),comfort level(P=0.188),or self-estimated capability to perform US in the future(P=0.442).There was no statistically significant difference in the percentage of correctly obtained images(P=0.211)or images that were clinically useful(P=0.256).The median quality score of images obtained by the standard group was eight compared to seven in handheld group(P<0.01).CONCLUSION:Our data suggest a handheld US machine can perform as well as a standard US machine as an educational tool despite sacrifices in image quality.
文摘<b>Introduction:</b> Ultrasound facilitates neuraxial puncture in obese parturients. Unfortunately, the widespread adoption of neuraxial ultrasound may be limited by the lack of technical expertise or the limited availability of the equipment. A wireless portable ultrasound device (Accuro, Rivanna Medical, Charlottesville, VA) with automated pattern recognition software (SpineNav3DTM technology) has been introduced to obtain the automated real-time identification of interspaces and epidural depth. The primary objective of this study was to assess the accuracy of the SpineNav3DTM ultrasound technology (Accuro) in estimating the epidural space depth compared to the standard ultrasound examination in pregnant obese patients. The secondary aim was to compare the ultrasound measurements with the measured needle depth during epidural and spinal insertion. <b>Methods:</b> The study was conducted at S Gerardo Hospital, Monza, Italy from March 2021 to April 2021. Obese laboring women requesting epidural analgesia or undergoing elective cesarean delivery under spinal anesthesia were recruited. All the subjects had their lumbar area scanned for the measurements of the depth of the epidural space by the SpineNav3DTM ultrasound technology and by the standard US and then both compared with the needle insertion depth in a double-blind fashion. <b>Results:</b> Forty-eight women were enrolled in the study. There was agreement (±0.25 cm) between the epidural depth (in cm) measured with the Accuro, versus the standard ultrasound. There was a significant difference between the mean depth of epidural space s measured by Accuro or Standard US and needle insertion depth (P < 0.001). <b>Conclusions:</b> The handheld ultrasound system with 3D spine navigation technology can automatically identify and measure the epidural depth with the same accuracy as the standard ultrasounds in obese pregnant women.
文摘目的:探讨自动乳腺容积成像技术(automated breast volume scanner, ABVS)与常规手持超声(handheld ultrasound,HHUS)对乳腺BI-RADS 3～5类病变的分类评估价值。方法:回顾性分析我院2016年10月至2017年6月期间对109个乳腺病灶进行自动乳腺容积成像技术与常规手持超声的影像资料,基于乳腺影像报告和数据系统(Breast Imaging Reporting and Data System,BI-RADS)分别对病变进行分类评定,以病理诊断为标准,将BI-RADS分类为3、4A、4B、4C、5类的良性病变分别评为5、4、3、2、1分。将BI-RADS分类为3、4A、4B、4C、5类的恶性病变分别评为1、2、3、4、5分。结果:92例患者109个乳腺病灶,80个恶性病灶,29个良性病灶。29个良性病灶包括纤维腺瘤12例、腺病瘤7例、复杂性囊肿3例、浆细胞性乳腺炎2例、肉芽肿性乳腺炎1例、导管内乳头状瘤1例、良性叶状肿瘤1例、小叶增生性腺病并放射状瘢痕1例、硬化性腺病1例;ABVS评价为5、4、3、2、1分的分别为24、1、2、2、0个,HHUS评价为5、4、3、2、1分的分别为19、8、1、1、0个。80个恶性病变包括导管内原位癌2例、非浸润性癌5例、早期浸润癌10例、浸润性非特殊癌39例、浸润性特殊癌24例;ABVS评价为5、4、3、2、1分的分别为17、35、22、6、0个,HHUS评价为5、4、3、2、1分的分别为12、25、31、10、2个。将ABVS与HHUS对乳腺病变的BI-RADS分类评分进行对比分析,Z=-3.069,P=0.002,差异有统计学意义。结论:ABVS能准确的对乳腺BI-RADS 3～5类病变进行分类评估,且ABVS较HHUS具有整体性强、可重复率高、操作者依赖性小、不易漏诊等优点,因而可以作为一种乳腺BI-RADS分类评估的常规检查方法。
文摘自动乳腺超声诊断系统(Automatic breast ultrasound system,ABUS)是近年来乳腺超声检查的一项新技术,具有图像标准化、操作可重复性高以及获得冠状面信息等优点。由于其图像采集与图像解读可独立进行,因此可提高超声医师工作效率。ABUS不仅可用作乳腺癌的筛查工具,在诊断性能上,其高质量的冠状面成像有助于鉴别病变良恶性;自动优化成像还可提高了乳腺病变的检出率。除此之外,它可对乳腺癌分子亚型进行预测,在新辅助化疗效果评估中有一定应用价值。本文对ABUS关于乳腺癌方面的临床应用研究进行综述,并探讨其未来更多应用。
