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Objective To evaluate routine ultrasonography combined with virtual touch tissue imagine (VTI) in the diagnosis of thyroid nodules .Methods The aim of the present study was to evaluate clinical value of conventional ultrasound and VTI elastography for thyroid nodules .We selected 36 thyroid nodule cases from 2013 to 2014 of our hospital .Dimensional ultrasound , Color Doppler Flow Imaging ( CDFI ) and Virtual touch tissue imagine (VTI)were used for diagnosis, and postoperative pathology results were compared .Results The conventional ultra-sonic testing had sensitivity 100%, specificity 96.5%, and accuracy 83.3%; The sound palpation tissue imaging (VTI) test had sensitivity 96.1%, specificity 86.2% and accuracy 86.1%.It was statistically significant ( p<0.05).Conclusion Routine two-dimensional ultrasound, Color doppler flow imaging (cdfi) and Virtual touch tis-sue imaging ( VTI) in the diagnosis of benign and malignant thyroid nodules have their own advantages and character -istics.They should be combined in clinical , which can improve diagnostic accuracy in the diagnosis of benign and malignant.
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Objective: To explore automatic breast full volume imaging (ABVS) and color doppler ultrasound (CDFI) for breast cancer neoadjuvant chemotherapy (NCT) in the evaluation of curative effect. Methods:The application of a CDFI and ABVS 42 cases of breast cancer patients receiving NCT lesions imaging characteristics before and after observation and analysis. Results:ABVS from coronal distribution and audio-visual change according to the primary tumor, and CDFI images showing the primary tumors and blood flow changes within all have significant difference in patients with complete remission after NCT (P0.05). Conclusion:We use ABVS and CDFI for breast cancer before and after the NCT curative effect evaluation of great clinical significance and value.
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@#Objective To investigate the role of color Doppler flow imaging(CDFI)in the early diagnosis of heterotopic ossification after spinal cord injury.Methods Serial CDFI and X-ray were performed per week in 39 patients with spinal cord injuries who were suspicioned with heterotopic ossification clinically.Results The finding under the CDFI including:losing of the regular lamellar pattern of the muscle fibres,chaotic irregular echogenic pattern,echo-free heamatoma,calcification,and extrinsic venous compression.There was statistical significance of incidence of diagnosis between CDFI and X-ray within a week(PP<0.01).Conclusion CDFI is effective on the early diagnosis of heterotopic ossification.
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Objective To analyze the ophthalmologic characteristics and examinations which caused by vertebral-basilar insuffi- ciency.Design Retrospective case series.Participants 469 eases of vertebral-basilar insufficiency.Methods Retrospective analysis of 469 cases of vertebral-basilar insufficiency patients with ophthalmologic signs' features,incidence,the main cause,color Doppler flow imaging and(or)digital subtraction angiography clearly stenosis location,the degree of stenosis from July 1st 2005 to July ist 2007 in PLA General Hospital.Main Outcome Measures Ophthalmologic signs' related reasons and supplementary examination.Results 96 cases were with the corresponding eye symptoms(20.4%).Vision decreased in 83 cases,diplopia was in 56 cases,ipsilateral hemiopia quadrant blind in 12 cases and depending on deformation in 10 cases,fundus arteriosclerosis in 72 cases,nystagmus in 39 cases,the eye movement disorder in 16 cases.Among 96 patients with associated ocular symptoms,75 patients with color Doppler flow imaging (CDFI)showed unilateral vertebral artery abnormal in 66 cases(88%),among those blood flow velocity decreased in 26 cases,17 cases with vascular plaque stenosis,thinning in 20 cases,3 cases with complete occlusion;different bilateral vertebral artery abnormal in 9 cases(12%),among those velocity dropped in 4 cases,two cases with vascular plaque stenosis and thinning in 3 cases.Forty-five cases with the digital subtraction angiography(DSA),left vertebral artery was abnormal in 24 cases,18 cases with stenosis,occlusion in 5 cas- es,abnormal bending in 1 case.Right vertebral artery was abnormal in 16 cases,13 cases with stenosis,occlusion in 3 cases.Bilateral vertebral artery stenosis was found in 2 cases;vertebral artery stenosis was in 3 patients.Conclusion Vertebral-basilar insufficiency may cause eye-related symptoms,therefore,vision acuity decrease,fundus 'arteriosclerosis,diplopia and nystagmus symptoms are more likely for patients with vertebral-patients with basilar artery insufficiency performance of the eye.(Ophthalmol CHN,2002,16:406-410)
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Objective To evaluate the application and the good qualities of high-resolution ultrasound and CDFI-guided mammotome minimally invasive biopsy device in the diagnosis and treatment of breast lesions.Methods The common clinical operations and the lesions which were guided mammotome minimally invasive biopsy device by high-resolution ultrasound and CDFI were contrasted.The effects of treatment were evaluated.Results 307 le- sions of 102 patients were removed by this method,and the operational process was successful.Patients' skin lacera- tions were tiny.Only one lesion was clinically diagnosed as mild blood clot under skin,but without other complica- tions.Conclusion Contrasted with the common clinily operations.the high-resolution ultrasound and CDFI-guided mammotome minimally invasive biopsy device in the diagnosis and treatment of breast lesion is effective,and the scar is tiny.It releases patients' pain.
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Based on the analysis of 26 malignant trophoblastic tumor patients detected by CDFI (Color Dopper Flow Image) and PD between 2001 and 2005,the article is an attempt to explore the clinical significance of CDFI and PD in treating the trophoblastic diseases in the early stage,including diagnosing the pathologic process,judging the chemotherapy effect and predicting the pathologic changes.
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Objective To investigate the diagnosis and application value of Color Doppler Flow Imaging(CDFI)and Transcranial Doppler(TCD)on blood hemodynamics of carotid artery and cerebral arteries in patients with type 2 diabetes mellitus.Methods Sixty-seven patients with type 2 diabetes mellitus and 53 normal subjects were examined on blood hemodynamics of carotid artery and cerebral arteries by CDFI and TCD,and their ultrasonographic features were recorded and compared.Results Forty-six of 67 patients have atherosclerosis on carotid artery by CDFI,56 of 67 patients have abnormal on cerebral arteries by TCD,there were significant difference between the patients and normal groups(P
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Objective To evaluate phenomenons and features of transient tricuspid regurgitation.Methods 56 cases of infant suffered severe pneumonia was examined by Doppler.Results The cardiac valves of the infant suffered severe pneumonia had normal shapes and location.48 cases with transient tricuspid regurgitation was found.The rate of occurance was 83.8%.Of these cases,most of them were in light level transient tricuspid regurgitation,a few were in medium level.The features were described as below:(1)The signal of reversed bloodstream from valve to right auricular was multicoloured.The direction of regurgitation was point to auricular septal or right auricular wall.The maximum velocity of regurgitation was 1.46～2.51M/S.(2)The transient tricuspid regurgitation had the features of reversibility.The transient tricuspid regurgitation could disappear nearly along with the recovery of severe pneumonia.Only 5 cases was transformed from medium level into light level.Conclusion The Doppler examination used in infant suffered severe pneumonia with transient tricuspid regurgitation is evidently superior to tricuspid valve auscultation,and the Doppler examination can be used to differentiate with congenital cardiac diseases.It is a useful method to evaluate the state,the variation and the curative effect of the illness.
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Objective To explore the clinical value of colour doppler flow imaging (CDFI) in selecting the ectopic pregnancy(EP) suitable for medical treatment. Methods 50 cases of ectopic pregnancy with hematodynamic stability were injected with a single dose of 50mg/m 2 MTX after CDFI examination. All patients were followed up until clinical results were confirmed. The CDFI characteristics of the failure and the success cases were analysed in combination with their serum HCG levels, and a CDFI-based pretherapeutic score were designed. Results CDFI could reflect the viability of ectopic fetus directly.There was a significant difference in the successful rate of medical treatment of ectopic pregnancy among the patients with various types of CDFI images and the various levels of serum HCG (P10 had the high failure rate, thus medical treatment of ectopic pregnancy is not recommended to them.
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Various collateral circulations were detected by 2D color Doppler flow imaging(2DCDFI)in the part of 70 patients of liver cirrhosis with portal hypertension,including reopened umbilical veins,dilated focal intrahepatic veins,dilating,hepatofugal centrifugal hepatic blood flow in the portalveins,perisplenic and retroperitoneai varices etc.Red and blue blood flows were detected in the collateral circulations by 2D-CDFI and appeared as continuous venous spectrum with low velocity blood volume could be calculated to evaluat the therapeulic effectiveness of portal-systemic shunt operation.
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The reseclability of 45 cases with pancreato-ampullar diseases was evaluated preoperatively with color Doppler flow imaging(CDFI).In 43,the situation was confirmed by surgery and pathology with obvious involvement of the peripancreatic vessels and/or liver metastases as the criteria for nonresectability. 22 patients considered to be not resectable on the basis of CDFl were proved at surgerY.While in 21 patients without sign of obvious involvement of peripancreatic vessels on CDFI,the resectability rate was 85.7%.The overall correlation rate of CDFl was 93%.It is concluded that CDFI plays a definite role in evaluating the resectability of panereato-ampullar disease.The positive signs of vessel involvement are discussed.
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Objective To evaluate the diagnostic role of high frequency ultrasonography(HFU) and CDFI for breast tumor,especially to evaluate the correlation of pathology in hyperplasia of breast.Methods HFU and CDFI findings were compared with pathological study in 196 cases with confirmed breast tumor.The tumor of breast were divided into three groups.They were 81 cases of fibrocystic disease ofbreast,70 cases of breast cancer and 45 cases of fibroadenoma disease of breast.Results The benign and nicious tumor of breast haddifferent and typical represent of HFU,because dates of HUF had correlation with those of pathology,such as tumor boundary,internalecho,mononode and multinode,calcification,attenuation and CDFI.Some patients had crossed represent of HUF and CDFI.Thesensitivity,specificity and accuracy rate were calculated apart from.The sensitivity of fibroscystic disease of breast was 89%,the specificity was 96.5%,the accuracy was 93%,the negative predictive value was 93%,the postive predictive valus was 95%;the sensitivity of cancer of breast was 89%,the specificity was 94%,the accuracy was 92%,the negative predictive value was 96%,the post predictive valus was 89%;the sensitivity of fibroadenoma of breast was 89%,the specifity was 93%,the accuracy was 92%,the negative predictive value was 96%,the postive predictive value was 80%.Conclusion HUF in combination with CDFI are useful in diagnosis of both male and female breast tumor.This study may be helpful in raising the ultrasonic diagnosis rate in breast tumor.