Seitz K, Vasilakis D, Ziegler M
Innere Abteilung, Kreiskrankenhaus Sigmaringen, Academisches Lehrkrankenhaus der Universität Tübingen, Sigmaringen.
Ultraschall Med. 2003 Apr;24(2):96-100. doi: 10.1055/s-2003-38671.
To determine the comparative performance of a portable sonography device in abdominal ultrasound.
In the daily routine of abdominal ultrasound scanning, the portable device SonoSite was tested against the high-end machine ATL 5000 HDI by two examiners with more than 5 years of ultrasound experience. The examination was restricted to the B-scan with a hands-on scanning time of 10 minutes. Patients with unknown diagnoses were first examined with the SonoSite, and the findings and diagnoses documented. Consecutively, the examination was repeated using the ATL HDI 5000. Differing findings and diagnoses were documented in a written form.
There were 62 identical results in 60 patients. The high-end device yielded 23 additional findings. Examination with the portable device did not allow a definite diagnosis in 4 more cases. This difference is statistically significant with a confidence interval of 95 %.
Portable ultrasound devices are surprisingly effective in the hands of experienced examiners. Imaging quality is predictably inferior to so-called high-end devices. Nearly all acute and therapeutically relevant diagnoses and findings were registered, even though nearly a quarter of the findings diagnosed with the high-end device were overlooked. These findings were mostly clinically irrelevant or very small in size. As could be expected, problems arose with pathological findings requiring high resolution, i.e., liver metastases, tiny gallstones, appendicitis, Crohn's disease etc. These form a clear indication for a high-end ultrasound examination.
确定便携式超声设备在腹部超声检查中的比较性能。
在腹部超声扫描的日常工作中，由两位具有超过5年超声经验的检查人员使用便携式设备SonoSite与高端机器ATL 5000 HDI进行对比测试。检查限于B超扫描，实际扫描时间为10分钟。首先对诊断不明的患者使用SonoSite进行检查，并记录检查结果和诊断。随后，使用ATL HDI 5000重复检查。以书面形式记录不同的检查结果和诊断。
60例患者中有62项结果相同。高端设备还发现了另外23项结果。使用便携式设备检查时，还有4例无法做出明确诊断。这种差异具有统计学意义，置信区间为95%。
在经验丰富的检查人员手中，便携式超声设备出人意料地有效。可以预见，其成像质量低于所谓的高端设备。几乎所有急性和与治疗相关的诊断及结果都能被记录下来，尽管高端设备诊断出的近四分之一的结果被忽视了。这些结果大多在临床上无关紧要或尺寸非常小。正如预期的那样，对于需要高分辨率的病理结果，如肝转移、微小胆结石、阑尾炎、克罗恩病等，会出现问题。这些情况明确表明需要进行高端超声检查。
