经会阴实时三维超声检查对女性压力性尿失禁的诊断价值

目的探讨经会阴实时三维超声检查在女性压力性尿失禁(SUI)中的诊断价值。方法回顾性分析我院收治的54例SUI女性患者的临床资料,作为研究组;选取同期于本院体检的54名健康且无SUI女性,作为对照组。两组均行经会阴二维、实时三维超声检查,分析诊断效能。结果经会阴实时三维超声诊断SUI的灵敏度、特异度、准确度高于经会阴二维超声(P<0.05)。研究组的R-BN-S、V-BN-S均低于对照组,R-肛提肌裂孔面积、V-肛提肌裂孔面积均大于对照组(P<0.05)。结论经会阴实时三维超声检查在女性SUI诊断中的应用价值较高。     

Activation of the external anal and urethral sphincter muscles by repetitive transcranial cortical stimulation during spine surgery

OBJECTIVE: Clinical utility of high intensity repetitive transcranial electrical stimulation (rTES) to elicit a response in external anal and urethral sphincter muscles was investigated in 23 patients undergoing spine surgery. METHODS: During surgery, motor evoked potentials (MEPs) were recorded from external anal sphincter (EAS), external urethral sphincter (EUS), and tibialis anterior (TA) muscles following high voltage rTES under total intravenous anesthesia. RESULTS: No neurologic sequelae occurred during or after the rTES of the motor cortex. Onset latency for the EAS muscle was 20.2 +/- 3.5 msec which was not significant compared to the EUS muscle latency at 19.9 +/- 1.8 msec. The average electrical intensity to evoke EAS response was 789 +/- 78 volts compared to the 831 +/- 11 volts of the EUS muscle. Waveform latency for the TA muscle was robust in all cases while the latencies for EAS and EUS were not always clear. CONCLUSIONS: This preliminary study shows that intraoperative MEP monitoring of the external anal and urethral muscles is feasible method in particular in circumstances where bowel and bladder function are at risk of an inadvertent injury due to surgical manipulation.     

Technical observations on the assessment of thyroid volume by palpation and ultrasonography.

OBJECTIVE: The diagnosis of increased thyroid volume, in field studies of goiter prevalence, has been based on inspection and palpation of the thyroid. Because clinical examination, compared with ultrasonography, has a low positive predictive value for the presence of a goiter, it overestimates goiter prevalence. It also has the problem of marked interobserver variability. This led to the use of ultrasonographic scanners in field studies. The problem with the latter is the cost and skill required for the complicated linear measures and their translation to lobe volume and then thyroid volume. We studied patients to determine whether this complicated assessment could be simplified. METHODS: We studied palpation in 31 patients with thyroid disease in whom individual ultrasonographic linear dimensions were also obtained in their 62 thyroid lobes to determine their relationship to thyroid lobe volume. RESULTS: Palpation revealed poor discrimination of smaller thyroid sizes as determined by ultrasonography. Stepwise linear regression (backward selection) revealed that of the 3 thyroid dimensions, only the lateromedial dimension of the thyroid lobe had a significant correlation to lobe volume, accounting for 82.5% of the variability in lobe volume. The lobe volume (in milliliters) is given by the lobe lateromedial dimension (in centimeters) multiplied by 13 minus a constant of 15. CONCLUSIONS: A simple linear ultrasonographic measurement of the thyroid lateromedial dimension, which can be done with little training, is as good as more complicated measures of thyroid volume estimation by ultrasonography and is an ideal method for identifying goiters in field surveys.     

Three-dimensional transperineal ultrasonography of the pelvic floor: improving visualization for new clinical applications and better functional assessment.

OBJECTIVE: With increasing awareness of the scope of pelvic floor disorders has come development and introduction into clinical practice of new imaging techniques, with increasing importance of ultrasonography. Complex pelvic floor anatomy, the conceptual difficulty in the basics of some pelvic floor disorders, and the uneven standardization of ultrasonographic techniques were the impetuses of this review. The purpose of this study was to review the basic anatomy of the pelvic floor and the transperineal ultrasonographic evaluation technique and to provide an overview of the current clinical use of 3-dimensional transperineal ultrasonography in the evaluation of the anterior and posterior pelvic floor compartments. METHODS: A literature review illustrated with index cases from our center was conducted. RESULTS: Ultrasonography has been widely applied to evaluation of the anterior and posterior compartments of the pelvic floor. Three-dimensional ultrasonography has a role in improving pelvic floor assessment. CONCLUSIONS: Three-dimensional transperineal ultrasonography has been applied to evaluation of normal and pathologic pelvic floor anatomy. Practical application, through well-designed and sufficiently powered clinical studies, will establish the association between the clinical presentations of dysfunction with ultrasonographic findings.     

Prenatal sonographic diagnosis of posterior urethral valves: Identification of valves and thickening of the posterior urethral wall

This report describes 2 heretofore unreported sonographic findings that may aid in the antenatal diagnosis of posterior urethral valves. Each of 2 fetuses showed a prominent or thickened posterior urethra and one or more bright echogenic lines representing valve tissue within a dilated and/or thickened posterior urethra. These findings helped solidify the antenatally suspected diagnosis of posterior urethral valves. The diagnosis was confirmed clinically and surgically during neonatal life. These 2 imaging findings may help in providing a more definitive antenatal diagnosis of posterior urethral valves and allow more expeditious therapy. © 1998 John Wiley & Sons, Inc. J Clin Ultrasound 26:366–370, 1998.     

Transrectal ultrasonography in the diagnosis of urethral diverticula in women

The diagnosis of urethral diverticula in women can be difficult. Several imaging modalities have been described for evaluating this entity: urethrography; transabdominal, transrectal, transvaginal, and transperineal ultrasonography; computed tomography (CT); and magnetic resonance (MR) can be helpful in evaluating a diverticulum and its relationship to the urethra. We report on four women aged 36 to 42 years with urethral diverticula. Transrectal ultrasonography (TRU) was the most useful diagnostic test in our series. TRU showed 7 urethral diverticula and provided information about its shape, volume, and content as well as its spatial relationship about its shape, volume, and content as well as its spatial relationship to the urethra. In two cases, multiple diverticula were detected when only a single lesion was clinically suspected. Transabdominal sonography failed to demonstrate small diverticula. CT examination did not provide additional information except for the passage of the contrast from the urethra to the diverticulum in one of the cases. Voiding cystourethrogram was positive in only one patient. © 1997 John Wiley & Sons, Inc.     

Intraurethral sonography and the test-retest reliability of urethral sphincter measurements in women

PURPOSE: The purpose of this prospective study was to determine the test-retest reliability of urethral sphincter morphologic measurements obtained with intraurethral sonography. METHODS: The cross-sectional urethral sphincter anatomy of 29 asymptomatic nulliparous women was studied in a blinded fashion. Each patient returned for a repeat examination on a different day. At the point of maximal rhabdosphincter thickness, the urethral diameter and circumference and the longitudinal smooth muscle and rhabdosphincter thickness, diameter, circumference, and area were measured using the ultrasound scanner's integrated software. For each measured variable, the reliability between patients was assessed with a paired t test. Intraclass correlation coefficients were calculated to assess the reliability of each intraurethral sonographic measurement obtained from the same patient. RESULTS: On test-retest analysis, the differences for each measured variable between patients were not statistically significant (p > 0.05). Of the measurements obtained from the same patient, however, longitudinal smooth muscle thickness (rho = 0.44; p = 0.006), diameter (rho = 0.49, p = 0.003), circumference (rho = 0.49, p = 0.003), and area (rho = 0.43; p = 0.009) were significantly correlated. CONCLUSIONS: The urethral longitudinal smooth muscle layer is the only structure that can be measured reliably using sonography for diagnostic use. Sonographic measurements of the rhabdosphincter may not be reliable because the outer portion of that structure lies outside the depth of penetration of a 12.5-MHz transducer.     

Blunt pelvic trauma with urethral injury in the female: a case report and review of the literature

A case of blunt pelvic trauma with injury to the urethra in a female is reported. Although uncommon, this type of injury is by no means as rare as previously thought. If the morbidity associated with delayed diagnosis is to be avoided, urethral injury should be a consideration in any case of major pelvic trauma in females.     

盐酸利多卡因胶浆导尿润滑剂在留置导尿中的应用及效果

目的 观察盐酸利多卡因胶浆作为导尿润滑剂,对减轻或消除患者因留置导尿而引起尿道刺激症状的效果.方法 将符合纳入标准的240例留置导尿的患者分为实验组和对照组,在留置导尿时对照组用石蜡油作为润滑剂,实验组使用盐酸利多卡因胶浆作为润滑剂,并对患者的尿路刺激程度进行比较.结果 实验组患者因留置导尿引起的尿路刺激反应程度较对照...     

Urinary Incontinence in Women and the Effects on their Lives

The aim of this study was to assess and analyse the effects of urinary incontinence in women and to examine the relationship between these effects and the type and severity of incontinence. 110 women aged 20 to 65 who had reported urinary incontinence to their general practitioners underwent a comprehensive history and a complete urodynamic evaluation. The reported consequences of incontinence included low self-esteem, changing life-style in order to avoid potentially embarrassing situations, and all kinds of practical worries. Fear of the odour played the most important part and was mentioned as being the worst effect in 40% of the cases. Most of the women appeared to cope adequately with the unpleasant aspects of this condition. More effects were associated with urge incontinence than with stress incontinence, while there was a significant relationship between the objective severity of the incontinence and its psychosocial impact. The main conclusion is that although urinary incontinence is not a severe physical disability, a spectrum of psychological problems is associated with it. In particular, the fear of being smelt was of the utmost importance.     

Hepatocellular carcinoma: assessment of vascularity with single-level dynamic ultrasonography during the arterial phase.

OBJECTIVE: To evaluate the hemodynamic features of hepatocellular carcinoma on single-level dynamic ultrasonography during the arterial phase. METHODS: Twenty-two hepatocellular carcinomas were examined by single-level dynamic ultrasonography with high transmit intensity and SH U 508A. The scans were performed for 40 seconds with a 1-second interval between each ultrasound transmission and with individual optimization of the scan delay time. The times of initiation of enhancement for both the hepatic artery and the tumor and the time of maximal enhancement for the tumor were recorded, and the mean echo values at every second for the tumor and hepatic parenchyma were measured. RESULTS: Twelve tumors showed hyperechoic enhancement compared with hepatic parenchyma throughout the scans. The other 10 showed hyperechoic enhancement during some segments (range, 8-34 seconds) and either isoechoic (n = 5) or hypoechoic (n = 5) enhancement during the remaining parts; the hyperechoic segments were often short (< 20 seconds, 14%). Although the times for initiation of enhancement for the hepatic artery and hepatocellular carcinoma and the time of maximal enhancement for the tumor varied, the tumor usually initiated enhancement immediately after the hepatic artery (r = 0.986; P = .000001). The interval between the time of initiation of enhancement for the tumor or hepatic artery and that of maximal enhancement for the tumor was significantly correlated with the tumor size (r = 0.700; P = .008; and r = 0.780; P = .002). CONCLUSIONS: With individual optimization of the scan delay time, single-level dynamic ultrasonography is useful for depicting the hypervascularity of hepatocellular carcinoma during the arterial phase.     

Sonographic detection of multiple brain abscesses in a newborn with IgA deficiency.

We report the case of a neonate with selective IgA deficiency and multiple brain abscesses diagnosed with sonography. Brain sonography revealed multiple abscesses in the left hemisphere; the abscesses ranged from 10 to 20 mm. Cultures obtained from the cerebrospinal fluid and blood were positive for Proteus mirabilis. The neonate responded promptly to broad-spectrum antibiotic therapy and had no neurologic sequelae. Because IgA deficiency is associated with infections, we believe it was a predisposing factor for the brain abscesses.     

经会阴二维及三维超声检查观察压力性尿失禁患者TVT-O术后吊带

目的应用经会阴二维及三维超声检查观察压力性尿失禁患者TVT-O(经闭孔、阴道无张力吊带)术后吊带位置、形态及活动情况。方法收集在我院接受TVT-O手术治愈的压力性尿失禁患者32例,术后3个月对患者行经会阴二维及三维超声检查,观察吊带在静息和Valsalva时的位置、形态和活动情况。结果 TVT-O吊带多位于尿道中下1/3交界处;Valsaval时尿道长度和吊带近端与膀胱颈之间尿道的实际长度较静息时变长;从吊带到耻骨联合的距离来看,Valsaval时较静息时吊带向前下方移动,而吊带的成角变小,但差异均无统计学意义。结论经会阴二维及三维超声检查可用于TVT-O术后吊带位置、形态和活动情况的观察。Valsalva时吊带的位置和形态改变不明显,但可在尿道中段形成闭合效应,加强控尿机制。     

Contrast-enhanced ultrasonography for assessment of tumor vascularity in hepatocellular carcinoma.

OBJECTIVE: Studies have shown that angiogenesis is a critical factor for tumor growth and metastasis in a variety of human tumors. Although various methods have been tried to assess vessels in tumors, including microvessel density (MVD), assessment of tumor vessels by radiologic techniques is not well established. The aim of this study was to investigate the efficacy of contrast-enhanced ultrasonography (CEUS) in determining the tumor vascularity of hepatocellular carcinoma (HCC). METHODS: Contrast-enhanced ultrasonography was done in 50 patients with HCC, which was shown histopathologically through subsequent hepatic resection. A contrast pulse sequencing technique and quantitative auto-tracking contrast quantification software were used to analyze the peak intensity (PI) of HCC. Immunohistochemistry was performed to evaluate the level of MVD in HCC. Then the relationship between PI and the level of MVD was analyzed. RESULTS: The mean PIs of HCC and peripheral tissue +/- SD were 135.19 +/- 28.16 and 72.91 +/- 19.22 dB, respectively. The MVDs of HCC and peripheral tissue were 43.44 +/- 12.22 and 17.14 +/- 9.18, respectively. The values of PI and MVD of HCC were significantly higher than those of peripheral tissue. A significant correlation was found between PI and MVD in HCC tissues (P < .05). CONCLUSIONS: The PI in CEUS could reflect the MVD in HCC. Therefore, quantification of CEUS seems to be helpful for assessment of tumor vascularity in HCC.     

Age-related rhabdosphincter function in female urinary stress incontinence: assessment of intraurethral sonography.

OBJECTIVE: To assess dynamic intraurethral sonography in the diagnostic evaluation of the function of the rhabdosphincter in female patients with urinary stress incontinence in relation to patient age. METHODS: Sixty-two patients with clinically proved urinary stress incontinence were investigated by means of intraurethral sonography with a 12.5-MHz endoluminal 9F catheter. The omega-shaped rhabdosphincter was visualized at rest and during voluntary contractions. Changes of muscle thickness and transducer-sphincter distance were measured and considered as parameters of muscle function. The intraurethral sonographic data were compared with results of standard urodynamic tests. RESULTS: Transducer-sphincter distance and sphincter muscle thickness showed a significant decrease with positive linear dependency on patient age (P < .001). Patients with grade III urinary stress incontinence had complete loss of sphincter contractility. A negative correlation was revealed between urethral closure pressure and patient age. CONCLUSIONS: We found an age-related decrease in rhabdosphincter function. Our results suggest that the rhabdosphincter is a substantial component of the continence mechanism in female urinary stress incontinence. Unlike urethral pressure profiles, which can only reveal zones of higher intraluminal pressure, transurethral sonography is highly specific for measurement of the function of the rhabdosphincter.     

A prospective comparative study of transvaginal ultrasonography and digital examination for cervical assessment in the third trimester of pregnancy.

Digital examination of the cervix has traditionally been the "gold standard" for cervical assessment. However, it can be subject to inter- as well as intra-observer variation. The usefulness of transvaginal ultrasonography for cervical assessment is examined in this study. Although differences between measurements of transvaginal ultrasonography and digital examinations were observed, transvaginal ultrasonography appears to be a potentially useful and reproducible technique for assessing cervical changes in pregnancy and for prediction of onset of labor.     

新疆碘缺乏重病区重点人群碘营养现状分析

目的 通过对乌什县和拜城县孕妇和哺乳妇女尿碘值的分析,了解新疆碘缺乏重病区重点人群的碘营养现状.方法 用过硫酸胺消化一砷铈催化分光光度测定法检测采集的孕妇和哺乳妇女的1次随意尿,用SPSS 15.0软件对检测结果进行统计分析.结果 共检测尿样338份,尿碘中位数为180.96g/L,四分位数间距为229.385g/L,50g,L的63份,占18.6%;100 g,L的121份,占35.8%;150g/L的150份,占44.4%;18.9%的孕妇、哺乳妇女尿碘在150～250g/L范围内.结论 新疆碘缺乏重病区有44.4%的重点人群碘营养不足,应因地制宜适时采取有效的、有针对性的补碘措施,以防止因碘缺乏而造成智力发育障碍.     

Endoanal sonography in the assessment of perianal endometriosis with external anal sphincter involvement

Endoanal sonography can be used in the assessment of benign and malignant anal conditions and to evaluate the anatomy of the anal sphincters. We used endoanal sonography with a 10-MHz rotating endocavitary probe to evaluate a 45-year-old woman with a perianal mass, fecal incontinence, and menses-associated perianal pain. She had had 2 vaginal deliveries requiring episiotomies. Biopsy of the mass showed endometrial tissue. The ultrasound examination showed a perianal mass and an external anal sphincter injury. A wide excision and sphincteroplasty were performed, with improvement of fecal continence and pain. Histopathologic examination of the mass confirmed perianal endometrioma in an episiotomy scar.     

Ultrasonographic assessment of arterial cross-sectional area in the thoracic outlet on postural maneuvers measured with power Doppler ultrasonography in both asymptomatic and symptomatic populations.

OBJECTIVE: The purpose of this study was to evaluate the feasibility and potential usefulness of power Doppler ultrasonography (PDU) in the assessment of changes in arterial cross-sectional area in the thoracic outlet during upper limb elevation. METHODS: Forty-four volunteers and 28 patients with a clinical diagnosis of arterial thoracic outlet syndrome were evaluated by B-mode imaging and PDU. Arterial cross-sectional area was assessed in the 3 compartments of the thoracic outlet with the arm alongside the body and at 90 degrees, 130 degrees, and 170 degrees of abduction. The percentage of arterial stenosis was calculated for each of these arm positions. Nineteen of the 28 patients were also assessed by magnetic resonance (MR) imaging. RESULTS: No significant arterial stenosis was shown in the interscalene triangle and in the retropectoralis minor space of the volunteers and patients. A significant difference (P < .01) in stenosis between volunteers and patients was seen for all degrees of abduction in the costoclavicular space. The 130 degrees hyperabduction maneuver appeared to be the most discriminating postural maneuver. Seven patients assessed with MR imaging did not have any arterial stenosis on MR images, whereas an appreciable degree of arterial stenosis was shown with ultrasonography. CONCLUSIONS: Arterial compression inside the thoracic outlet can be detected and quantified with B-mode imaging in association with PDU.