In order to meet the requirements of ultrasound bone density measurement, we designed a software based on Visual Studio C++ 2008. The software includes interface design, acquisition and control, data processing and parameter extraction, data storage and printing. Excellent human-computer interface (HCI) will give users a convenient experience. Auto gain control (AGC) and digital filter can improve the precision effectively. In addition, we can observe waveform clearly in real time. By using USB communication, we can send control commands to the acquisition and get data effectively, which can shorten the measuring time. Then we calculated the speed of sound (SOS) and broadband ultrasound attenuation (BUA). Patients' information can be accessed by using XML document. Finally, the software offers printing function.
ObjectivesTo evaluate the predicting value of bedside pulmonary ultrasound in bronchopulmonary dysplasia (BPD) in premature infants.MethodsPremature infants with gestational age below 28 weeks or birth weight below 1 500 g admitted to NICU of Chengdu Women and Children’s Central Hospital from June 2018 to June 2019 were included. Pulmonary bedside ultrasound monitoring was performed on the 3rd, 7th, 14th and 28th day after admission, and the characteristic ultrasound images were recorded and scored. BPD were diagnosed by NICHD standard. The clinical data and pulmonary ultrasound data were compared and analyzed. Then diagnostic value of bedside pulmonary ultrasound in BPD of premature infants were analyzed.ResultsA total of 81 children involving 32 BPD and 49 non-BPD were included. The sensitivity (Sen), specificity (Spe) and area under curve (AUC) of receiver operating characteristic (ROC) of the "alveolar-interstitial syndrome" within 3 days after birth and the "fragment sign" on 28 days after birth were 81.25%, 51.02%, 0.66 and 31.25%, 97.96%, 0.65, respectively. The lung ultrasound scores in the BPD group on the 3rd, 7th, 14th, and 28th day after birth were 71.99.%, 68.39%, 0.71; 87.50%, 57.14%, 0.72; 78.13%, 73.47%, 0.76 and 56.25 %, 75.51%, 0.66. Sen, Spe and ROC AUC of comprehensive evaluation of lung ultrasound predicted the occurrence of BPD been 81.25%, 63.27%, and 0.85.ConclusionsThe comprehensive evaluation of combination of "alveolar interstitial syndrome" image characteristics within 3 days after birth, "fragment sign" image characteristics after 28 days, and lung ultrasound score at different times after birth can predict the premature infants with bronchopulmonary dysplasia.
Objective
To summarize experience and efficacy of multidisciplinary treatment for severe intra-abdominal infection.
Methods
The clinical data of 17 patients with severe intra-abdominal infection underwent multidisciplinary treatment were analyzed retrospectively. There were 5 cases of severe acute pancreatitis, 4 cases of postoperative biliary fistula, 2 cases of intestinal fistula, 2 cases of pancreatic trauma, 1 case after resection for intestinal necrosis, 1 case of abdominal trauma, 1 case after operation for liver abscess, 1 case of unexplained severe intra-abdominal infection. The experiences of multidisciplinary treatment including the intensive care unit (ICU), surgery, blood purification center, and departments of pharmacy, nutrition, and digestion and internal medicine, and so on were summarized.
Results
After multidisciplinary treatment, 13 patients were cured, of which 4 patients treated by non-open operation. Three patients died, including 1 patient died of infectious shock, 1 patient died of pancreatic bed bleeding, 1 patient died of multiple organ failure. There was 1 case of automatic discharge.
Conclusions
Multidisciplinary treatment including ICU, surgery, blood purification center, and departments of pharmacy, nutrition, and digestion and internal medicine, and so on has an exact clinical curative effect in patients with severe intra-abdominal infection. Concept of damage control should be followed by surgical intervention. Abdominal cavity puncture and drainage has some advantages of small trauma and good clinical effect, which is suitable for infection control of patients with severe intra-abdominal infection, it could provide surgical condition and opportunity for patients required further surgical treatment.
Objective To explore the value of three-dimensional contrast-enhanced ultrasound angiography in the differential diagnosis of breast masses. Methods A total of 120 patients with breast masses who were treated in our hospital from July 2013 to February 2016 were selected as the research objects retrospectively, including 70 patients of benign tumor (benign group) and 50 patients of malignant tumor (malignant group) that confirmed by surgery and pathology. All patients were given conventional two-dimensional ultrasound and three-dimensional contrast-enhanced ultrasound angiography during the diagnosis. Compared the imaging features of benign group and malignant group, and compared the diagnostic value of two-dimensional ultrasound and three-dimensional contrast-enhanced ultrasound angiography for breast masses. Results Compared with benign group, the rates of irregular masses, unclear boundary, inhomogeneous echo, lateral shadowing, echo attenuation, and micro calcification in the malignant group were all higher (P<0.05). The three-dimensional contrast-enhanced ultrasound angiography scores in malignant group and benign group were significantly different with each other (P<0.05), the score of the malignant group was higher than that of benign group. The 2- and 3-score was common in benign group, but 4- and 5-score was common in malignant group. The diagnostic sensitivity of two-dimensional ultrasound and three-dimensional contrast-enhanced ultrasound angiography for breast masses were 97.1% (68/70) and 98.6% (69/70) respectively, and the specificity were 80.0% (40/50) and 96.0% (48/50) respectively, the specificity of three-dimensional contrast-enhanced ultrasound angiography was significantly higher than that of two-dimensional ultrasound (P<0.05). Conclusion Two-dimensional ultrasound and three-dimensional contrast-enhanced ultrasound angiography both have a certain diagnostic value in the differential diagnosis of breast masses, but the three dimensional contrast-enhanced ultrasound angiography can get more information through assessment of richness of the microvascular in tumor tissue, so as to improve the diagnostic specificity and is worthy of popularization and application.
ObjectiveTo systematically review the value of ultrasound contrast agents injected subcutaneously for diagnosing sentinel lymph nodes of breast cancer.
MethodsWe electronically searched databases including PubMed, EMbase, The Cochrane Library, CNKI, CBM, WanFang Data, and Medalink from their inception to July 2014, to collect diagnostic accuracy studies of ultrasound contrast agents injected subcutaneously for diagnosing sentinel lymph nodes of breast cancer. Two reviewers independently screened literature according to the inclusion and exclusion criteria, extracted data and assessed the methodological quality of included studies. Then, meta-analysis was performed by using Meta-Disc 1.4 software.
ResultsEight studies involving 311 sentinel lymph nodes were included. The results of meta-analysis showed that, the pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, diagnostic odds ratio, and the area under curve (AUC) of SROC were 0.89 (95%CI 0.84 to 0.93), 0.81 (95%CI 0.72 to 0.87), 4.14 (95%CI 2.20 to 7.79), 0.15 (95%CI 0.10 to 0.25), 33.23 (95%CI 11.17 to 98.83), and 0.96 respectively.
ConclusionContrast-enhanced ultrasound has a high value in diagnosis of sentinel lymph nodes of breast cancer. Due to limited quality and quantity of the included studies, more high quality and large-scale studies are needed to verify the above conclusion.
ObjectiveTo explore effectiveness of musculoskeletal ultrasound combined with Wide-Awake technique in extensor indicis proprius tendon (EIP) transfer for repairing extensor pollicis longus tendon (EPL) rupture. Methods A clinical data of 20 patients with EPL spontaneous rupture, who were admitted between January 2019 and June 2024 and met the selective criteria, was retrospectively analyzed. During EIP transfer surgery, the musculoskeletal ultrasound-guided incision marking combined with Wide-Awake technique was used in combination group (n=10) and the tourniquet-assisted surgery under brachial plexus block anesthesia in the control group. There was no significant difference in the baseline data between groups (P>0.05), including gender, age, affected side, cause and location of tendon rupture, and time from injury to hospitalization. The accuracy of preoperative musculoskeletal ultrasound in predicting the actual tendon rupture site was evaluated in the combination group. The operation time, intraoperative blood loss, visual analogue scale (VAS) scores during operation and at 6 hours after operation, total incision length, and postoperative complications were recorded. Surgical outcomes were assessed at 12 months after operation using the specific EIP-EPL evaluation method (SEEM), which included measurements of thumb elevation loss, thumb flexion loss, index finger dorsiflexion loss, and total score. ResultsIn the combination group, the incision position marked by preoperative musculoskeletal ultrasound positioning was consistent with the actual tendon rupture position. Compared with the control group, the operation time and total incision length in the combination group were significantly shorter and the VAS score at 6 hours after operation was significantly higher (P<0.05). There was no significant difference in intraoperative blood loss or intraoperative VAS score between groups (P>0.05). All incisions in both groups healed by first intention. Two patients in the control group developed swelling and blisters in the tourniquet area, which subsided spontaneously without special treatment. All patients were followed up 12-14 months, with an average of 12.5 months. The thumb dorsiflexion function of all patients recovered to varying degrees. At last follow-up, the thumb elevation loss in combination group was significantly lower than that in control group, and the total score was significantly higher (P<0.05); there was no significant difference in thumb flexion loss or index finger dorsiflexion loss between groups (P>0.05). ConclusionMusculoskeletal ultrasound can accurately locate the site of tendon rupture, assist the Wide-Awake technique in implementing precise anesthesia, and adjust tendon tension while reducing tissue trauma, with satisfactory effectiveness.
ObjectiveTo investigate the clinical value of neuronavigation combined with intraoperative ultrasound in the resection of glioma with epilepsy.MethodsTo review and analyze the clinical data of 47 glioma patients with epilepsy treated by intraoperative ultrasound-assisted neuronavigation during the period from June 30, 2012 to June 30, 2014, and to compare and analyze the extent of gliom resection and the control of epilepsy before and after surgery.ResultsAll the patients had no hematoma, infection or hemiplegia. MRI was reviewed 48 hours after surgery and MRI showed complete resection in 34 cases and subtotal resection in 13 cases. One year after the operation, the seizure control was evaluated. Engel’s class I, 17 cases, Engel’s class II, 20 cases, Engel’s class III, 10 cases. When the nerve function is protected, the tumor is removed and the epileptic seizure is controlled, and the clinical effect is remarkable.ConclusionsNeuronavigation is helpful to locate the lesion and brain functional area and design the surgical approach before surgery, and to guide the location and boundary of the lesion and functional area during surgery. Intraoperative ultrasound has many advantages such as noninvasive, repeatable and real-time examination. Neuronavigation combined with intraoperative ultrasound can achieve maximum resection of gliomas and epileptogenic foci and reduce the incidence of postoperative neurological dysfunction in patients.
ObjectiveThis study is designed to explore the indications, clinical pathway, and benefits of ultrasound-guided local anesthesia in radiofrequency endovenous obliteration (RFO) for great saphenous vein varices (GSV).MethodsA total of 350 patients diagnosed with GSV were divide into observation group (n=175) and control group (n=175). Patients in the observation group underwent local anesthesia RFO, and patients in the control group underwent intravertebral anesthesia. Comparion in the visual analogue scale pain scores (VAS) when anesthesia and after surgery, operative indexes, recovery time, satisfaction, and complications were performed.ResultsCompared with the control group, the VAS score with anesthesia time were lower (P<0.05), while in the surgery were higher (P<0.05), as well as the operative time, the first time for underground activity, normal activity time, incidences of complication of anesthesia and urinary were shorter (P<0.05), and the satisfaction rate was higher (P<0.05). There was no difference in the pain score of 12 h and 24 h after surgery, blood loss, volume of anesthetic swelling fluid, postoperative hospitalization, incidences of urinary tract infection, incisional infection, and deep vein thrombosis (P>0.05).ConclusionsThe RFO is feasible and safe after local anaesthesia. It can decrease the complication of anesthesia, that will promote the patient soon to be restored to health.
ObjectiveTo systematically review the differential diagnostic value of contrast-enhanced ultrasound (CEUS) and contrast-enhanced CT (CECT) for renal solid space-occupying lesions.
MethodsDatabases including EMbase, PubMed, The Cochrane Library (Issue 11, 2014), CNKI, CBM, VIP and WanFang Data were searched for diagnostic tests about CEUS and CECT for renal solid space-occupying lesions from inception to September, 2014. Two reviewers independently screened literature, extracted data and assessed the methodological quality of included studies. Then meta-analysis was performed using Meta-Disc 1.4 software.
ResultsA total of 13 studies involving 754 specimens were included. The results of meta-analysis showed that:the sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, diagnostic odds ratio (combined effect and its 95%CI) in the CEUS group were 0.96 (95%CI 0.94 to 0.97), 0.77 (95%CI 0.70 to 0.83), 3.82 (95%CI 2.93 to 4.97), 0.06 (95%CI 0.04 to 0.10), 64.33 (95%CI 36.79 to 112.51), and in the CECT group were 0.84 (95%CI 0.81 to 0.87), 0.73 (95%CI 0.65 to 0.79), 2.81 (95%CI 2.22 to 3.56), 0.23 (95%CI 0.16 to 0.34), 13.85 (95%CI 6.79 to 28.26). There were significant differences between the CEUS group (0.960 8, 95%CI 0.927 3 to 0.994 3) and the CECT group (0.866 8, 95%CI 0.788 8 to 0.944 8) in the area under the summary receiver operating characteristic (SROC) curve (P<0.05). The similar results were observed in cases with small renal tumors≤4 cm (AUC:0.973 7 vs. 0.861 3, P<0.05).
ConclusionCEUS has higher differential diagnostic value than CECT for renal solid space-occupying lesions.
To observe the effects of ultrasound-guided stellate ganglion block (SGB) on cerebral oxygen metabolism and postoperative cognitive dysfunction (POCD) of elderly patients, we collected 80 elderly patients undergoing selective coronary artery bypass graft under cardiopulmonary bypass. The Mini Mental State Examination (MMSE) was applied to test the cognitive function. The SjvO2, Da-jvO2 and CEO2 were used for the analysis of the cerebral oxygen metabolism. We found that POCD was related to disequilibrium of cerebral oxygen metabolism. Ultrasound-guided SGB before surgery reduced the incidence of POCD because of the improvement of cerebral oxygen metabolism.
