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Objective To investigate the diagnostic value of triangular shadow changes in carpus dislocation.Methods 68 patients with carpal dislocation underwent frontal and lateral X-ray films.The changes of triangular shadow on lateral films were evaluated based on imaging findings of normal wrist joints.Results Changes of triangular shadow were found in 65 (95.59％)patients,while 3 (4.41％)patients had no changes.There were 17 patients with simple carpal dislocation,in which 15 cases showed triangular shadow changes, while 2 patients showed no changes.Thirty-two patients got pericarpal dislocation,in which 31 cases with triangular shadow changes and 1 case without any changes.The triangular shadow changes were observed in all 19 patients with trans-carpal carpal dislocation or trans-carpal pericarpal dislocation.Conclusion The changes of triangular shadow are helpful in the diagnosis of carpal dislocation, it is difficult to diagnose carpal lateral dislocation.
ABSTRACT
Objective To investigate the diagnostic value of triangular shadow changes in carpus dislocation.Methods 68 patients with carpal dislocation underwent frontal and lateral X-ray films.The changes of triangular shadow on lateral films were evaluated based on imaging findings of normal wrist joints.Results Changes of triangular shadow were found in 65 (95.59％)patients,while 3 (4.41％)patients had no changes.There were 17 patients with simple carpal dislocation,in which 15 cases showed triangular shadow changes, while 2 patients showed no changes.Thirty-two patients got pericarpal dislocation,in which 31 cases with triangular shadow changes and 1 case without any changes.The triangular shadow changes were observed in all 19 patients with trans-carpal carpal dislocation or trans-carpal pericarpal dislocation.Conclusion The changes of triangular shadow are helpful in the diagnosis of carpal dislocation, it is difficult to diagnose carpal lateral dislocation.
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The problems of some hospital in medical equipment maintenance management were introduced from the aspects of maintenance time, maintenance record, maintenance service and self maintenance. Some measures were proposed including simplifying maintenance process through PDCA, informatizing maintenance record, cooperating with third-party maintainer and establishing self maintenance team, so that precision and informatized medical equipment management can be realized to maximize the benefit of medical equipment management.
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<p><b>OBJECTIVE</b>To explore the core mechanism of cell cycle compensation using a mathematical model.</p><p><b>METHODS</b>A set of ordinary differential equations were used to describe the interactions between the core cell cycle molecules. Continuous and cyclic changes of the concentrations of these molecules were computed to capture the discrete events of molecular interactions.</p><p><b>RESULTS</b>The calculated molecule concentrations and captured signaling events agreed with the experimental results.</p><p><b>CONCLUSION</b>E2F transcription factor 1 is the pivotal element linking the positive and negative feedbacks and regulating G1/S and G2/M phase compensation.</p>
Subject(s)
Animals , Cell Cycle , Drosophila , Cell Biology , E2F1 Transcription Factor , Feedback, Physiological , Models, TheoreticalABSTRACT
Objective To improve the diagnosing level of lunate and perilunate dislocation through analysing X-ray finding and causes of missing diagnosis.Methods 16 cases of lunate and perilunate dislocation missed diagnosis were analysed.Results In 16 cases,there were 3 cases of ventral lunate dislocation,2 cases of trans-scaphoid ventral lunate dislocation,6 cases of dorsal perilunate lunate dislocation,3 cases of trans-scaphoid dorsal perilunate lunate dislocation and 2 cases of atypical dorsal perilunate lunate dislocation.6 cases were missed in diagnosis(37.5%).Conclusion Knowing well the normal X-ray sign of wrist,mastering the X-ray characteristic of each types of dislocation and fracture,is the linchpin of reducing missing diagnosis.
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Objective: To determine tetrahydropalmatine in Juyanbaokang Granules (Rhizoma Corydalis, Radix Aconcti Lateralis Preparata, Radix Rauwolfiae, etc.) by SPE-HPLC. Methods : Samples were purified by C 18 SPE column. HPLC column was Dikma Diamonsil C 18 (250mm?4.6mm,5?m), mobile phase was 0.05M potassium dihydrogen phosphate-0.005M sodium heptanesulfonate-acetonitrile (1.2∶1.2∶1), flow rate was 1.2 mL?min -1 and detection wavelength was 230nm. Results : The calibration curve was linear in the range of 0.067 ～0.402?g for tetrahydropalmatine ( r =0.9997). The average recovery was 98.66%. Conclusion : The method with good separation is convenient, rapid, accurate and reliable.