Radio-frequency measurements of energetic-electron-driven emissions using high-frequency magnetic probe on XuanLong-50 spherical torus

A high-frequency magnetic probe is designed and developed on the XuanL ong-50(EXL-50)spherical torus to measure high-frequency magnetic field fluctuation.The magnetic loop,radio filters,radio-frequency limiter,and data acquisition system of the probe are comprehensively examined.The fluctuation data from the EXL-50 plasma are analyzed in the time–frequency domain using fast Fourier transforms.Moreover,distinct high-frequency instabilities are detected using this diagnostic system.In particular,significant frequency chirping is observed,which is consistent with the bumpon-tail drive instability predicted using the Berk–Breizman model.

Comparative study for predictability of type 1 gastric variceal rebleeding after endoscopic variceal ligation:High-frequency intraluminal ultrasound study

BACKGROUND The efficacy of endoscopic ultrasonography for the follow-up of gastric varices treated with endoscopic variceal ligation(EVL)has not been established.AIM To evaluate the diagnostic correlation of esophagogastroduodenoscopy(EGD)and high-frequency intraluminal ultrasound(HFIUS)for type 1 gastric varices(GOV1)after EVL and to identify the predictability for rebleeding of EGD and HFIUS.METHODS In liver cirrhosis patients with GOV1,we performed endoscopic follow-up using EGD and HFIUS synchronously after EVL for hemorrhage from GOV1.Endoscopic grading and red color signs were analyzed using EGD,and the largest variceal cross-sectional areas were measured using HFIUS.In addition,1-year follow-up was performed.Variceal rebleeding was defined as the presence of hematemesis,hematochezia,or melena without other evidence of bleeding on endoscopic follow-up.RESULTS In 26 patients with GOV1,variceal cross-sectional areas on HFIUS of GOV1 was poorly correlated with EGD grading of GOV1(r=0.36).In 17 patients who completed the 1-year follow-up,variceal cross-sectional areas on HFIUS was a good predictor of subsequent rebleeding,whereas EGD grading was not a predictor of subsequent rebleeding.CONCLUSION HFIUS measurement is more predictive of GOV1 rebleeding than EGD grading,so HFIUS measurement may be necessary for endoscopic follow-up after EVL in patients with GOV1.

Application Value of High-Frequency Ultrasound and Contrast-Enhanced Ultrasound in Patients with Knee Osteoarthritis with Different TCM Syndromes

Objective: To explore the application value of high-frequency ultrasound and contrast-enhanced ultrasound in different syndrome types of knee osteoarthritis, and to provide more imaging evidence for clinical diagnosis and treatment. Method: Sixty patients with KOA were selected according to TCM classification, which were mainly divided into Qi stagnation and blood stasis type and cold-dampness blockage type. All knee joints were routinely examined by high frequency ultrasound, and those with synovial hyperplasia were examined by contrast-enhanced ultrasound. High frequency ultrasound is the examination of synovium, cartilage and collateral ligament of knee joint based on two-dimensional ultrasound. Contrast-enhanced ultrasound (CEUS) refers to the contrast examination of synovium in knee joint patients with synovial hyperplasia. Result: Among them, the suprapatellar sac effusion and synovial thickening of Qi stagnation and blood stasis type were more obvious than those of cold-dampness arthralgia type (P < 0.05), and the degree of wear of the intercondylar cartilage of cold-dampness arthralgia type was more obvious than that of Qi stagnation. The blood stasis type is heavier and the meniscus bulge is higher (P < 0.05). The radiography of synovial hyperplasia showed that the area under the curve of Qi stagnation and blood stasis type was higher than that of cold dampness arthralgia type (P < 0.05), and the peak time was significantly shorter than that of cold dampness arthralgia type. There was no statistical difference in effective peak gradient and onset time of type (P > 0.05). Conclusion: To a certain extent, the high-frequency ultrasound and contrast-enhanced ultrasound performance of knee osteoarthritis can be used as a dialectical reference for different TCM syndrome types.

Evaluating the Efficacy of Cervical Tactile Ultrasound Technique as a Predictive Tool for Spontaneous Preterm Birth

Background: Premature cervical softening and shortening may be considered an early mechanical failure that predispose to preterm birth. Purpose: This study aims to explore the applicability of an innovative cervical tactile ultrasound approach for predicting spontaneous preterm birth (sPTB). Materials and Methods: Eligible participants were women with low-risk singleton pregnancies in their second trimester, enrolled in this prospective observational study. A Cervix Monitor (CM) device was designed with a vaginal probe comprising four tactile sensors and a single ultrasound transducer operating at 5 MHz. The probe enabled the application of controllable pressure to the external cervical surface, facilitating the acquisition of stress-strain data from both anterior and posterior cervical sectors. Gestational age at delivery was recorded and compared against cervical elasticity. Results: CM examination data were analyzed for 127 women at 240/7 - 286/7 gestational weeks. sPTB was observed in 6.3% of the cases. The preterm group exhibited a lower average cervical stress-to-strain ratio (elasticity) of 0.70 ± 0.26 kPa/mm compared to the term group’s 1.63 ± 0.65 kPa/mm with a p-value of 1.1 × 10−4. Diagnostic accuracy for predicting spontaneous preterm birth based solely on cervical elasticity data was found to be 95.0% (95% CI, 88.5 - 100.0). Conclusion: These findings suggest that measuring cervical elasticity with the designed tactile ultrasound probe has the potential to predict spontaneous preterm birth in a cost-effective manner.

Development of a High-frequency Ultrasound System for High-speed Image Scanning

High-frequency image technique has been widely applied in medical diagnosis recently. For high voltage protection, high speed stage and trigger control circuitry are difficult to implement a high-frequency ultrasound imaging system. In this study, we utilized a linear servo with high noise tolerance and a novel multi-depth expression method to overcome those issues in developed high-speed image system. B-mode image of the chicken phantom by 25 MHz transducer shows the resolution of lateral and axial resolutions are up to 123 μm and 59 μm respectively. In addition, the experiment demonstrates that the axial resolution and depth of field (DOF) can be improved by time gain compensation(TGC) and multi-depth method. The results indicate that the proposed system could achieve over 24 fps for 1 mm scan distance and 100 lines per frame. In the future, the developed system is potential for other clinical applications such as ophthalmology and dermatology.

Measurement of Ion Cyclotron Emissions by Using High-Frequency Magnetic Probes in the LHD

Two pairs of high-frequency magnetic probes were installed in the Large Helical Device （LHD）. During the injection of a perpendicular neutral beam, ion cyclotron emissions （ICEs） with the fundamental frequency corresponding to the ion cyclotron frequency at the plasma edge were detected, which are the same type of ICE as measured with the former spare ion cyclotron range of frequencies （ICRF） heating antennas. This type of ICE was further investigated with regard to the phase and intensity of signals. Another type of ICE was found in the LHD, and these ICEs were synchronized with bursts of toroidicity induced Alfv^n eigenmodes （TAE） and the rise of intensity of lost ion flux. Therefore the source of these ICEs was thought to be the particles transferred from the core to the outer region of plasma by the TAE bursts. The frequency of ICEs induced by the TAE bursts increases linearly with the magnetic field strength, since the ion cyclotron frequency increases with the magnetic field strength.

Efficacy evaluation of high-frequency ultrasound in the treatment of diabetic peripheral neuropathy with α-lipoic acid combined with traditional Chinese medicine package treatment

Objective:To use high-frequency ultrasound to evaluate the efficacy ofα-lipoic acid combined with traditional Chinese medicine in the treatment of diabetic peripheral neuropathy(DPN),so as to provide a basis for clinical medication and evaluation of therapeutic effect.Methods:From December 2018 to December 2019,110 patients with DPN who met the inclusion and exclusion criteria were divided into observation group and control group according to different treatment plans.The control group was treated withα-lipoic acid,and the observation group was treated withα-lipoic acid combined with traditional Chinese medicine encapsulation treatment,and used high-frequency ultrasound,nerve conduction velocity and serological examination to comprehensively evaluate the effectiveness of the two treatment methods.Results:The mean amplitude of glycemic excursions(MAGE)value of the observation group and the control group after treatment was significantly lower than before treatment(P<0.05);After treatment,the SCV of the ulnar nerve,median nerve,and common peroneal nerve in the two groups was significantly faster than before treatment(P<0.05).Similar to SCV,the MCV of the three nerves measured after treatment in the two groups was significantly faster than before treatment(P<0.05).Compared between the groups after treatment,the three kinds of nerve SCV and MCV in the observation group were significantly faster than those in the control group(P<0.05).The cross-sectional area(CSA)value of the ulnar nerve,median nerve and common peroneal nerve in the observation group after treatment was significantly lower than before treatment(P<0.05).Compared with the control group after treatment,the three nerves CSA in the observation group was significantly lower than that in the control group(P<0.05).Abnormal ultrasound performance:The proportion of abnormal ultrasound performances of the ulnar nerve,median nerve,and common peroneal nerve in the observation group after treatment was significantly lower than before treatment(P<0.05).The composition ratio of internal echo reduction and ambiguity in the observation group after three nerve treatments was significantly lower than that in the control group after treatment(P<0.05).In the correlation analysis,the three kinds of nerve CSA before and after treatment were negatively correlated with SCV and amplitude(P<0.05),and positively correlated with latency(P<0.05).Conclusion:The combination ofα-lipoic acid and Chinese medicine encapsulation technology has a good effect on the treatment and repair of DPN nerve damage,and can be routinely applied in clinical treatment.High-frequency ultrasound can intuitively observe changes in peripheral nerves and can be used to evaluate the prognosis of DPN.

Analysis of High-Frequency Ultrasound in the differential Diagnosis of Lumps in Foot and Hand

Objective:To investigate the ultrasonogram characteristics of common lumps in hand and foot,pursuing for greater understanding of hand and foot lumps.Methods:65 cases of ultrasonographic characteristics of lumps in hand and foot were retrospectively analyzed,including the location,size,shape,boundary,internal echo and posterior echo,surrounding relationship and blood flow.Results:Among 65 cases,there were 26 cases of tendon sheath cyst,16 cases of tenosynovitis giant cell tumor,10 cases of hemangioma,4 cases of tendon sheath fibroma,3 cases of epidermoid cyst,2 cases of Schwannoma,2 cases of fibrolipoma,1 case of angiolipoma and 1 case of neurofibroma.The preoperative and postoperative pathological diagnoses of 45 cases,accounting for 69.23%,were consistent,3 cases(4.62%)were misdiagnosed,which included that 2 cases of tenosynovitis giant cell tumor were misdiagnosed as tendon sheath cyst,1 case of neurofibroma as epidermoid cyst,and the preoperative diagnosis of the rest 17 cases(26.15%)were indefinite.Conclusion:The high-frequency ultrasound can diagnose properties of lumps in foot and hand well,providing diagnosis basis for further treatment in clinic.

Transit time ultrasound perivascular flow probe technology is superior to MR imaging on hepatic blood flow measurement in a porcine model

Background: The hepatic hemodynamics is an essential parameter in surgical planning as well as in various disease processes. The transit time ultrasound(TTUS) perivascular flow probe technology is widely used in clinical practice to evaluate the hepatic inflow, yet invasive. The phase-contrast-MRI(PC-MRI) is not invasive and potentially applicable in assessing the hepatic blood flow. In the present study, we compared the hepatic inflow rates using the PC-MRI and the TTUS probe, and evaluated their predictive value of post-hepatectomy adverse events. Methods: Eighteen large white pigs were anaesthetized for PC-MRI and approximately 75% hepatic resection was performed under a unified protocol. The blood flow was measured in the hepatic artery(Qha), the portal vein(Qpv), and the aorta above the celiac trunk(Qca) using PC-MRI, and was compared to the TTUS probe. The Bland-Altman method was conducted and a partial least squares regression(PLS) model was implemented. Results: The mean Qpv measured in PC-MRI was 0.55 ± 0.12 L/min, and in the TTUS probe was 0.74 ± 0.17 L/min. Qca was 1.40 ± 0.47 L/min in the PC-MRI and 2.00 ± 0.60 L/min in the TTUS probe. Qha was 0.17 ± 0.10 L/min in the PC-MRI, and 0.13 ± 0.06 L/min in the TTUS probe. The Bland-Altman method revealed that the estimated bias of Qca in the PC-MRI was 32%(95% CI:-49% to 15%); Qha 17%(95% CI:-15% to 51%); and Qpv 40%(95% CI:-62% to 18%). The TTUS probe had a higher weight in predicting adverse outcomes after 75% resection compared to the PC-MRI( β= 0.35 and 0.43 vs β = 0.22 and 0.07, for tissue changes and premature death, respectively). Conclusions: There is a tendency of the PC-MRI to underestimate the flow measured by the TTUS probes. The TTUS probe measures are more predictive of relevant post-hepatectomy outcomes.

Study on a New Ultraviolet Sterilizer to the Surface Disinfection of the Ultrasound Probe

We studied the disinfection effect of a new ultraviolet （UV） sterilizer and its utilization on ultrasound probe surfaces. Carrier quantitative germicidal tests, simulated on-the-spot trials, and organic substance influence tests were used to carry out experimental observation. Artificially infected probes were disinfected using the sterilizer or a germicidal lamp for comparison. The total number and types of bacteria were determined and identified. Our results demonstrated the sterilizer had the best disinfection effect among three different disinfection methods in hospital. The sterilizer has been used in a hospital setting for 2 years with no notable damage to the ultrasound probe instrument. It has the advantages of fast disinfection, high disinfection effect, and good compatibility with the ultrasound instrument, worthy of being a promoted application in medical institutions.

Endoscopic mucosal resection for rectal carcinoids under micro-probe ultrasound guidance

AIM: To assess the therapeutic value of endoscopic mucosal resection (EMR) under micro-probe ultrasound guidance for rectal carcinoids less than 1 cm in diameter. METHODS: Twenty-one patients pathologically diagnosed with rectal carcinoids following colonoscopy in our hospital from January 2007 to November 2012 were included in this study. The patients consisted of 14 men and 7 women, with a mean age of 52.3 ± 12.2 years (range: 36-72 years). The patients with submucosal tumors less than 1 cm in diameter arising from the rectal and muscularis mucosa detected by micro-probe ultrasound were treated with EMR and followed up with conventional endoscopy and micro-probe ultrasound. RESULTS: All of the 21 tumors were confirmed by micro-probe ultrasound as uniform hypoechoic masses originating from the rectal and muscularis mucosa, without invasion of muscularis propria and vessels, and less than 1 cm in diameter. EMR was successfully completed without bleeding, perforation or other complications. The resected specimens were immunohistochemically confirmed to be carcinoids. Patients were followed up for one to two years, and no tumor recurrence was reported. CONCLUSION: EMR is a safe and effective treatment for rectal carcinoids less than 1 cm in diameter.

A molecular probe carrying anti-tropomyosin 4 for early diagnosis of cerebral ischemia/reperfusion injury

In vivo imaging of cerebral ischemia/reperfusion injury remains an important challenge.We injected porous Ag/Au@SiO_(2) bimetallic hollow nanoshells carrying anti-tropomyosin 4 as a molecular probe into mice with cerebral ischemia/reperfusion injury and observed microvascular changes in the brain using photoacoustic imaging with ultrasonography.At each measured time point,the total photoacoustic signal was significantly higher on the affected side than on the healthy side.Twelve hours after reperfusion,cerebral perfusion on the affected side increased,cerebrovascular injury worsened,and anti-tropomyosin 4 expression increased.Twenty-four hours after reperfusion and later,perfusion on the affected side declined slowly and stabilized after 1 week;brain injury was also alleviated.Histopathological and immunohistochemical examinations confirmed the brain injury tissue changes.The nanoshell molecular probe carrying anti-tropomyosin 4 has potential for use in early diagnosis of cerebral ischemia/reperfusion injury and evaluating its progression.

基于真实世界数据的医用彩超设备超声探头使用分析

目的综合分析我院体检中心彩超设备超声探头使用情况,为超声探头的优化使用和科学配置提供建议及参考。方法通过我院建立的医疗设备物联网数据采集平台,采集我院体检中心10台彩超设备27把探头2022年1—6月的使用数据,分析超声探头工作时长、使用时长和使用效率等参数,比较不同彩超设备不同类型超声探头的使用差异。结果不同彩超设备同类型超声探头日均工作时长、使用时长、工作效率存在差异,且部分彩超设备超声探头的日均工作时长和使用时长均未达到总体平均水平。我院体检中心存在彩超设备探头使用不充分、不均衡以及部分超声探头配置冗余现象。结论通过医疗设备物联网平台采集并分析我院体检中心超声探头使用数据,可以为提高超声探头的使用效率、优化体检中心超声检查流程和科学合理配置超声探头提供坚实的数据支撑,为实现医院高质量发展提供管理抓手。

经引导鞘径向超声支气管镜肺活检对肺外周结节的诊断价值

目的:探讨分析经引导鞘径向超声支气管镜肺活检(RP-EBUS-GS-TBLB)诊断肺外周结节(PPL)阳性率。方法:回顾性分析2022年3月—2023年2月江西省人民医院收治的经胸部CT检查确诊为PPL的100例患者病例资料,所有患者均行RP-EBUS-GS-TBLB与径向超声支气管镜肺活检(RPEBUS-TBLB)。比较两种检查方法诊断PPL的阳性率。结果:RP-EBUS-GS-TBLB诊断PPL的总阳性率(71.00%)与二者联合诊断PPL的总阳性率(81.00%)均高于RP-EBUS-TBLB诊断PPL的总阳性率(45.00%),差异均有统计学意义(P<0.05)。RP-EBUS-GS-TBLB与二者联合诊断PPL间总阳性率比较,差异无统计学意义(P>0.05)。RP-EBUS-GS-TBLB与RP-EBUS-TBLB中不同探头位置、直径情况的病例间诊断PPL的阳性率,差异均有统计学意义(P<0.05);对于病灶直径≤20 mm、探头位置临近病灶的患者RP-EBUS-GS-TBLB诊断PPL的阳性率明显高于RP-EBUS-TBLB,差异均有统计学意义(P<0.05)。结论:与RP-EBUS-TBLB相比,RP-EBUS-GS-TBLB诊断PPL的阳性率更高,使用鞘管后再重复活检并不能提高其诊断阳性率,不同探头位置与病灶大小的PPL诊断阳性率存在明显差异;对于大于20 mm的病灶,使用引导鞘并不能提高诊断PPL的阳性率,对于探头位置临近病灶使用引导鞘可适当提高诊断PPL的阳性率。

一种用于尿道瘢痕防治动物实验的超声探头设计

目的 尿道瘢痕是患者尿道手术后常见的并发症之一,并且难以通过手术治疗方法清除。低强度脉冲超声(low intensity pulse ultrasound,LIPUS)在抑制纤维化,抑制炎症方面有十分突出的表现,为超声防治尿道瘢痕提供了理论的可能性。尽管如此,目前并没有对超声用于尿道瘢痕的防治作用的报道,另外有关超声抑制纤维化、抑制炎症的作用机制也仍需要进一步的研究。本文针对新西兰雄兔尿道重建模型设计了一种超声探头,用于LIPUS抑制尿道瘢痕疗效和作用机制的动物实验研究。方法 根据兔阴茎的尺寸与形状设计探头结构,通过有限元仿真预测探头声场,用3D打印技术制造原型机。最后对探头声场进行测试,并且用于动物实验验证其实用性。结果 探头超声频率为2 MHz,治疗腔长度44 mm,直径8 mm。治疗腔沿长度方向上有3个紧邻的治疗区,每个治疗区的半功率长度约6 mm,治疗区内的I_(sata)(时间平均空间平均声强)可通过前端驱动器电源电压进行调节,当电源电压为30 V时,I_(sata)大于0.87 W/cm^(2)。结论 本文设计的超声探头体积小、重量轻、声场均匀,可以对动物尿道实施稳定有效的超声照射,为超声治疗尿道瘢痕动物实验提供了一种有用的工具。

核管道流量测量超声阵列位置优化研究

随着国内在核领域的不断发展,核管道冷却剂流量测量的精度要求也在不断提高。在超声流量测量时差法和径向基函数与奇异值分解的重建算法(RBF-SVD)应用背景下,为进一步提高管道流量测量的精度,实验结果表明,相对于初始均匀安装方式,优化后的超声探头位置可以在流速场重建的流速均方根误差减小了1.02%,平均流速误差减小了0.14%,证明此项技术具有较好的工程应用背景。

用于经食道超声心动图的1.5维超声探头设计

设计了一种用于经食道超声心动图的1.5维超声探头,与传统1维超声探头相比,该探头可在仰角方向上实现变孔径、变焦点,从而提高切片厚度在远场、近场的一致性。采用传统PZT-5H压电陶瓷作为压电材料制备了一个包含320阵元的1.5维经食道超声探头,随后测试探头的电学性能、声学性能和声场分布情况。该探头的中心频率为5.6 MHz,-6 dB带宽为76%。在5~70 mm的探测范围内, 1维超声探头切片厚度为7~9 mm, 1.5维超声探头切片厚度为1.3~2.8 mm,在5~30 mm探测范围内切片厚度差值不超过0.2 mm,线靶成像显示的信息也更全面、分辨率更高。因此, 1.5维超声探头具有更广的聚焦深度、更好的远近场分布一致性以及更高的空间分辨率。

超声小探头在周围型肺癌患者中的临床应用

目的:探讨超声小探头在周围型肺癌患者中的临床应用。方法:选择2021年1月-2022年12月中国科学院大学深圳医院(光明)接诊的周围型肺癌患者83例,患者均行小探头超声检查,以病理结果为金标准,根据有无淋巴结转移将患者分为转移组与非转移组,比较两组超声指标、彩色血流平均密度(mean color vessels eensity,MCVD)及病理微血管密度(microv essel density,MVD),并对MCVD及MVD进行相关性分析。根据TNM分期进行病情严重程度评估,比较两组患者MCVD及MVD,并对MCVD与TNM分期进行相关性分析。结果:转移组患者低回声、回声不均匀、边界清晰、短径≥1.0 cm者占比分别为75.00%、85.71%、78.57%、71.43%,均高于非转移组的29.09%、40.00%、49.09%、38.18%(P<0.05)。转移组患者MCVD及MVD水平均高于非转移组(P<0.05)。Pearson相关性分析结果显示MCVD与MVD呈正相关关系(r=0.622,P<0.05)。不同TNM分期患者MCVD与MVD差异均具有统计学意义,且均呈Ⅰ期<Ⅱ期<Ⅲ期(P<0.05)。相关性分析结果显示MCVD与TNM分期呈正相关关系(r=0.817,P=0.013)。结论:周围型肺癌患者出现淋巴结转移者低回声、回声不均匀、边界清晰、短径≥1.0 cm者占比更高,小探头超声MCVD与MVD及TNM分期均呈正相关关系。

快速现场评估联合径向支气管超声肺活检对老年周围型肺部病变的诊断价值

目的 探讨快速现场评估(ROSE)联合径向支气管超声肺活检(EBUS-TBLB)对老年病人周围型肺部病变(PPLs)的诊断价值。方法 选择112例经胸部CT发现有未确诊的老年PPLs病人纳入本研究。所有病人均接受了EBUS-TBLB检查,并从每次操作中获得活检标本,进行ROSE,将ROSE诊断结果与最终病理诊断结果进行比较,记录ROSE阳性组及阴性组的操作时间、操作次数,分析ROSE联合EBUS-TBLB在老年病人PPLs诊断中的可行性和安全性。结果 ROSE联合EBUS-TBLB对老年病人PPLs的诊断准确度、敏感度和特异度分别为90.2%、86.7%和97.3%。ROSE阳性病人的活检次数和操作时间均少于ROSE阴性病人(P<0.05)。所有病人均无严重的手术并发症发生。结论 ROSE联合EBUS-TBLB是一种安全有效诊断老年病人PPLs的方法。

彩色多普勒超声多探头联合诊断急性附件扭转的价值及声像图特征分析

目的:探讨彩色多普勒超声多探头联合应用在急性附件扭转的价值。方法:选择2018年1月—2024年1月北京和睦家医院收治的32例疑似急性附件扭转患者为研究对象,均进行经腹凸阵超声探头、经阴道凸阵超声探头及经阴道高频线阵探头彩色多普勒超声检查,以术中表现及病理检查结果为金标准,分析彩色多普勒超声多探头联合诊断急性附件扭转的临床价值。结果:手术及病理证实,32例疑似急性附件扭转患者中确诊为附件扭转21例,彩色多普勒超声多探头联合对附件扭转的检出率为90.48%,高于经腹凸阵探头的检出率为66.67%、经阴道凸阵探头的检出率80.95%及经阴道高频线阵探头的检出率53.13%。ROC曲线分析结果显示,彩色多普勒超声经腹凸阵探头、经阴道凸阵探头、经阴道线阵高频探头联合诊断急性附件扭转的灵敏度为90.5%、特异度为91.0%。O-RADS彩色多普勒超声血流评分越低术中附件活性越低。结论:彩色多普勒超声多探头联合诊断急性附件扭转的价值较高,为临床提供更有意义的诊断依据。