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Objective: To investigate the diagnostic value of automatic breast volume system (ABVS) for breast carcinoma in clinical practice so as to use these reliable data to provide imaging reference for further therapy. Methods: 300 patients with suspected breast cancer were selected and the postoperative pathological examinations were chosen as the golden standard to implement screening. At the same time, 2 radiologists were selected to carry out the grading diagnoses of breast imaging reporting and data system (BI-RADS) so as to observe the consistency between diagnoses of ABVS and pathological results. Results: 210 patients were diagnosed as breast tumor by the post-operative pathological examination, and these patients included 89 malignant tumor (29.67%, 89/300). In these malignant cases, there were 42 cases were infiltrative ductal carcinoma, and its rate was 47.19% (42/89). Besides, there were 121 cases were benign tumor (40.33%), and the rate of patients with fibrosum adenoma (78 cases) was the highest in the 121 cases (64.46%, 78/121). And the diagnostic consistency of them was preferably (K=0.724). The sensitivity and specificity of ABVS in diagnosing breast carcinoma were 92.86% and 85.56%, respectively. Its positive predictive value and negative predictive value were 93.75% and 83.70%, respectively. And the Youden index was 0.78. Conclusion: ABVS has relatively high sensitivity and specificity, and the screening test has good authenticity and reproducibility. Therefore, it can provide a reliable basis for clinical diagnosis and treatment.
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Objective:To explore the application of fetal multi-organ hemodynamics in the detection and evaluation of oxygen supply and blood supply for fetus in the third trimester of pregnancy. Methods: 42 pregnant women with gestational diabetes mellitus and 42 healthy pregnant women were divided into observation group and control group, respectively. All of the fetuses of pregnant women received Doppler ultrasound examination, and the pulsatility index(PI), resistance index(RI) and systolic/diastolic(S/D) ratio of umbilical artery (UA)and middle cerebral artery (MCA) of every fetus in the two groups were observed. Besides, the number of fetal distress was recorded and the relationship between fetal distress rate and gestational diabetes mellitus were calculated.Results:The PI, RI and S/D of MCA of fetuses of pregnant women with gestational diabetes mellitus was significantly higher than that of healthy pregnant women (t=7.52,t=6.04, t=8.69,P<0.05). And the PI, RI and S/D of UA of fetuses of pregnant women with gestational diabetes mellitus also was significantly higher than that of health pregnant women (t=11.95,t=9.78,t=8.95, P<0.05). Besides, the fetal distress rate of observation group was significantly higher than that of control group (x2=19.56,P<0.05).Conclusion: The fetal blood flow information which obtained from Doppler ultrasound has very importantly value in the diagnosis of gestational diabetes mellitus, and it verifies the relationship between fetal distress rate and gestational diabetes mellitus. It provides beneficial basis for the prevention and treatment of the gestational diabetes mellitus in the clinical practice.
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Objective:To assess the application of ultrasonography in the diagnosis of thyroid diseases with different types of nodules calcification.Methods:160 cases history of thyroid nodules with calcification confirmed by ultrasound diagnosis and pathological examination were performed the retrospective analysis. According to the ultrasonographic features of calcified nodules, it can be divided into type I, type II, type III and type IV, in which there are 210 benign nodules and 120 malignant nodules. Analyze the correlation between the different types of calcification and the benign or malignant thyroid nodules.Results: Type IV of thyroid benign nodules calcification is highest proportion, accounting for 46.7%(98/210), and significant difference (x2=76.27,P<0.05)compared with the other 3 types. Type I calcification in malignant nodules is highest proportion, accounting for 65%(78/120), and significant difference (x2=175.29;P< 0.05) compared with the other 3 types. In 108 cases of benign and malignant type I calcification, the incidence of malignant nodules is higher than benign nodules accounting for 72.2% (78/108), and type I calcium nodules were significantly different between those of benign and malignant (x2=42.67,P<0.05).Conclusions: Ultrasonography in the diagnosis of thyroid diseases with different types of nodules calcification had very important clinical application value. Type I calcified nodule has more important value in the diagnosis of thyroid carcinoma.
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Objective:To investigate the value of color doppler flow imaging (CDFI) in the diagnosis of liver cirrhosis upper gastrointestinal bleeding in portal vein hemodynamic changes. Methods: 96 cases of patients with liver cirrhosis were selected who were diagnosed in our hospital, according to the history whether patients had a gastrointestinal bleeding or not. They were divided into bleeding group(45 cases) and no bleeding group(51 cases). At the same time, we chose the hospital physical examination center of 42 cases of healthy volunteers as a control group, using color doppler flow imaging portal venous blood flow mechanics parameters, including diameter, average blood flow velocity and blood flow of portal vein(PV) and splenic vein(SV) and compare the data of the three groups.Results: Compared with control group, the patients with liver cirrhosis, the blood vessel diameter have increased whether bleeding or not. The average blood flow velocity is slower and PVF is larger, and the differences between them are statistically significant(t=3.579,t=3.670,t=4.750,t=3.951,t=6.116,t=5.371;P<0.05). Conclusion: The clinical application of color doppler flow imaging(CDFI) in patients with cirrhosis portal hemodynamic change is not only simple noninvasive, and there is important diagnostic value in the detecting parameters.
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Objective:To explore the application value of central venous indwelling catheter guided by ultrasound in temporary hemodialysis patients.Methods:Seven hundred and eight cases of hemodialysis patients were choosed as the respondents who were divided into control group(n=386) and ultrasound group(n=322), sex ratio, average age, disease distribution, platelet count(Plt), prothrombin time(PT), systolic blood pressure (SBP), neck circumference was no statistical difference in two groups. In control group, indwelling catheter of the right internal jugular vein were implemented in the triangle area formed by sternocleidomastoid clavicular head, sternum, clavicle by using surface anatomic mapping. In ultrasound group, position, the diameter and blood flow filling situation of the right internal jugular vein by using ultrasound scan, the veins were punctured and indwelled catheter under the guided by ultrasound. The success rates and times of indwelling catheter, as well as complications were compared between two groups.Results: One-time success rate of indwelling catheter guided by ultrasound group was obviously higher than that of control group, the rates were statistically significant difference (x2=118.82,P<0.01), and the indwelling time was significantly shorter than that of control group, The difference was statistically significant (t=7.03,P<0.01). The puncture comfort score of ultrasound group was significantly higher than that of control group, The difference was statistically significant (t=6.29,P<0.01). The complication rate of ultrasound group was lower than that of control group, the difference was statistically significant (x2=28.24,P<0.01).Conclusion: Ultrasound help to understand the position, diameter and blood flow filling situation of the right internal jugular vein, improve the success rate of indwelling catheter and reduce the occurrence of complications.
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Objective:To evaluate the diagnostic value of MRI and ultrasound imagingr in the breast intraductal papilloma.Methods: 29 patients with multiple or isolated breast intraductal papilloma were selected, who were pathologically confirmed. All patients underwent preoperative breast X-ray, ultrasound, dedicated breast MRI plain and dynamic enhanced MRI. According to Breast Imaging Reporting and Data System (BI-RADS), we observed the lesion size, shape, location, margin, polymorphism and its relationship with the catheter by the ultrasound and MRI scan, and analyze enhancement pattern of dynamic contrast-enhanced MRI lesion. Results: In 29 cases of patients with 30 lesions, a total of 28 lesions were detected by MRI, including one patient with bilateral lesions which were positive, and two cases of malignant tumor which were difficult to identify. 25 lesions were detected by ultrasound, in which 4 cases were negative. There were statistical differences in BI-RADS classification of lesions detected by ultrasound and MRI(Z=-2.377,P<0.05). The detection rate of malignant intraductal papilloma lesion by MRI was higher than ultrasound.Conclusion: MRI and ultrasound imaging can be used for diagnosis of intraductal papilloma, but the MRI is superior to ultrasound scanner in lesion detection rate and accuracy, especially in the intraductal papilloma of benign and malignant.
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Objective:To explore the diagnostic value of color soppler flow imaging(CDFI) be applied to pseudoaneurysms in different parts of the body.Methods: Retrospectively analyzed clinical data of 29 pseudoaneurysms patients who were diagnosed by Color Doppler Flow Imaging during january 2012-october 2013, to discuss the features of two-dimensional echocardiography and CDFI signal,all the diagnostic results were compared to the operation results.Results: The biggest lump among 29 patients is 6.3 cm×11.8 cm×12.5 cm, located in femoral artery, the smallest one is 2.3 cm×2.8 cm×0.5 cm, located in carotid artery,all the patients were confirmed by operations, The coincident diagnostic rate was 100%, 39 Pseudoaneurysms had been found in total, among these, the number of patients have single Pseudoaneurysms were 22, about 75.86%, 4 patients have one more pseudoaneurysms, about 13.79%, 3 patients have two more pseudoaneurysms,about 10.34%. 23 breachs have been found by two-dimensional echocardiography, and 6 breachs haven’t been found, but all the breachs have been found by CDFI. Back and forth movement flow pattern was the main diagnostic sign.Conclusion: Color doppler flow Imaging is safe and noninvasive,and have high diagnostic value in diagnosing pseudoaneurysms, it is the preferred method in diagnosis.
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Objective:To analyze the ultrasound and CT imaging findings of medullary soonge kidney, to improve the diagnosis level of medullary soonge kidney.Methods: Fourty cases confirmed by pathology or clinical were divided into two groups, group A: 20 cases by B ultrasonic examination, group B: 20 cases by CT examination, The two groups of imaging data were retrospectively analyzed.Results: Ultrasound examination reveals strong echo mass or strong echo plague in the renal medulla, radiate out along the renal pyramid, Strong echo edge is coarse, same size, within small anechoic areas. MSCT finds multiple small mottled stones in the cone. Enhanced scan finds contrast agent filling around renal collecting duct stones, presents visible stripes or small cystic contrast agent accumulation when no stones in renal collecting duct. CT diagnosis coincidence rate is slightly higher than that of ultrasounds, but there was no significant differences in positive rate(x2=2.057,P>0.05).Conclusion: Medullary sponge kidney has a typical ultrasound, CT performance. A combination of them is conducive to clinical diagnosis.
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BACKGROUND: Postoperative urinary retention is a common postoperative complication. Persistent distention of the bladder may affect the function of the detrusor, resulting in impairment of micturition. This study examined the risk factors and incidence of early postoperative urinary retention and distention in PACU (postanesthesia care unit) using an ultrasound scanner. METHODS: The bladder volume was measured in 228 surgical patients before discharge from the PACU using an ultrasound scanner. The postoperative urinary retention was defined as the inability to void at a bladder volume exceeding 500 ml within 30 min. The potential variables of urinary retention were collected including age, gender, type of surgery and anesthesia, duration of anesthesia, amount of perioperative fluid, post operative patient-controlled analgesia, and anticholinergics. The independent risk factors for postoperative urinary retention were identified by multivariate analysis. RESULTS: The incidence of postoperative urinary retention in the PACU was 14.0%. Risk factors of the early postoperative urinary retention in the PACU detected by the ultrasound scanner were age (50 yr, odds ratio = 3.3), spinal anesthesia (odds ratio = 2.6) and the amount of perioperative fluid (700 ml, odds ratio = 4). CONCLUSIONS: It is recommended that early postoperative urinary retention be evaluated routinely using an ultrasound scanner in the PACU, particularly in older patients and patients given a large amount of perioperative fluid after spinal anesthesia.
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Humans , Analgesia, Patient-Controlled , Anesthesia , Anesthesia, Spinal , Cholinergic Antagonists , Incidence , Multivariate Analysis , Odds Ratio , Postoperative Complications , Risk Factors , Ultrasonography , Urinary Bladder , Urinary Retention , UrinationABSTRACT
A portable ultrasound scanner has been developed to provide a noninvasive technique of measuring the bladder urine volume. This study was undertaken to determine if bladder volumes could be accurately measured in a group of spinal cord injury patients on a clean intermittent catheterization program, using a portable ultrasound scanner(BladderManager PCI 5000). We assessed the effects of different patient positions, presence of central obesity and bladder types by the urodynamic study on the accuracy of measurements as well as the inter-tester difference. Ultrasound measurements of urine volume performed by two physicians were compared to the volumes obtained by catheterization in 17 spinal cord injury patients. Subjects were tested in the seated and supine positions. The results showed a good correlation between the catheterized volumes and ultrasound measurements (Pearson correlation coefficient=0.97, r2=0.88). The mean % error was 18% for the catheterized volumes within the ranges of 45ml-640ml. But the ultrasound measurements revealed a significantly higher % error for the bladder volumes less than 200ml. Ultrasound measurements were more accurate in a supine position and among the non-obese subjects(p<0.05). There was no significant difference in the ultrasound measurements between areflexic type bladder and hyperreflexic type bladder neither in the inter-tester measurements. We conclude that the Bladder Manager PCI 5000 is not an accurate tool for the assesssment of post-void residual urine volumes, however it can be a useful tool for the patients with neurogenic bladder who are performing volume-directed clean intermittent catheterization, in reducing the unnecessary catheterization or preventing the bladder overdistensions.