Objective To analyze the characteristics of breast medullary carcinoma in CEUS and to compare with pathologic features.Methods Morphologic characteristics of 13 breast medullary carcinomas in CEUS were analyzed.The diameter of mass before and after CEUS were compared.Parameters from time-intensity curves of masses were analyzed in contrast with peripheral breast parenchyma.All the results from CEUS analysis were compared with pathological manifestations.Results Breast medullary carcinoma was characterized as irregular shape (n=10),clear margins (n=11) and uniform enhancement (n=11) in CEUS.These characteristics were in accordance with their morphologic characters in pathology.The diameter of mass before and after CEUS had no significant defference (P=0.61),which was in accordance with expansive growth in pathology.In contrast with peripheral breast parenchyma,the arrival time and time to peak of breast medullary carcinoma were significantly shorter (P=0.034,0.021),and peak enhancement intensity was significantly stronger (P=0.005),which were in accordance with the increased vascular density and their uniform distribution,big arteries at the margin of masses in pathology.Conclusion Breast medullary carcinoma has distinguished characteristics in CEUS,which are in accordance with characters in pathology,and can be used as the basis in clinical diagnosis and differential diagnosis of breast medullary carcinoma.

Objective:To explore any effect of electroacupuncture (EA) at the Baihui (DU20) and Dazhui (GV14) acupoints on the learning and memory of rats modeling cerebral palsy (CP), and on the miR-126 regulated VEGF/Notch1 pathway.Methods:Fifty-four male Sprague-Dawley rats 7 days old with an average weight of (20±5g) were randomly divided into a sham operation group, a model group, and an electroacupuncture group, each of 18. All except the sham operation group had a model of CP induced using left common carotid artery ligation combined with hypoxia. Twenty-four hours after successful modelling, the EA group received 14 sessions of electroacupuncture at the DU20 and GV14 acupoints, once every other day. On the 29th day, learning and memory ability were evaluated using a Morris Water Maze. The expression of vascular endothelial growth factors (VEGF and VEGFR-2) was detected using immunohistochemical staining. The levels of notch1 and hes1 protein were quantified using western blotting, and the expression of miR-126 RNA was quantified using reverse transcription polymerase chain reactions (RT-qPCRs).Results:Compared with the sham group, there was a significant decrease in the average learning and memory, and the level of miR126 in the model group, but a significant increase in the expression of VEGF and VEGFR-2 and the levels of notch1 and hes1. Significant improvement was observed in all of the measurements of the EA group compared with the model group.Conclusions:Electroacupuncture at the DU20 and GV14 acupoints can improve the ability of learning and memory of rats modeling CP. The mechanism may be related to regulation of the VEGF/notch1 pathway by miR-126 and its promotion of angiogenesis.

Objective:To automatically synthesize Al 18F-1, 4, 7-triazacyclononane-1, 4, 7-triacetic acid (NOTA)-fibroblast activation protein inhibitor (FAPI)-04, perform PET/CT imaging in vivo, and evaluate its diagnostic efficacy on tumors. Methods:Al 18F-NOTA-FAPI-04 was produced in All-in-one automatic synthesis module and its quality control was conducted by high performance liquid chromatography (HPLC) equipped with a radioactive detector. Al 18F-NOTA-FAPI-04 PET/CT imaging was performed in normal BALB/c mice ( n=3) and 4T1 breast cancer models ( n=3) to determine its biodistribution. Then Al 18F-NOTA-FAPI-04 and 18F-FDG PET/CT imaging were performed in a hepatocellular carcinoma patient (male, 51 years old). Results:The synthesis time of Al 18F-NOTA-FAPI-04 was about 35 min, and the radiochemical yield was (25.2±1.9)% (attenuation correction, n=3). The product was colorless transparent solution with pH value of 7.0-7.5, and the specific activity was (46.11±3.07) GBq/μmol (attenuation correction, n=3). The radiochemical purity was above 99.0% and was still above 98.0% at room temperature after 6 h. PET/CT imaging in mice showed that physiological uptake of Al 18F-NOTA-FAPI-04 was mainly in biliary system and bladder, and Al 18F-NOTA-FAPI-04 highly concentrated in tumor xenografts. PET/CT imaging in the patient showed that Al 18F-NOTA-FAPI-04 obtained high tumor background ratio (TBR) values of 4.1, 8.9, 5.4, 4.8, 2.2 in parasternal lymph nodes, anterior diaphragmatic lymph nodes, hilar lymph nodes, pancreaticoduodenal ligament lymph nodes, abdominal aortic lymph nodes, respectively, while TBR values were 1.0, 2.8, 5.0, 2.1, 1.1 by 18F-FDG. Conclusions:Al 18F-NOTA-FAPI-04 can be synthesized with short time, high radiochemical yield and good stability using All-in-one module. Al 18F-NOTA-FAPI-04 PET/CT imaging has high contrast and excellent diagnostic efficacy on tumors.