1.Sonographic diagnosis of renal masses excluding simple cyst
On Koo CHO ; Gwang Woo RHEE ; Kap Kyoo CHOI ; Yun Lyeon KIM ; Chang Kok HAHM ; Jung Jin KIM
Journal of the Korean Radiological Society 1986;22(3):402-411
Sonography is quite sensitive screening method for th detection of renal mass lesions, but the specificity isrelatively low. Authors analized the sonographic findings of the confirmed 67 cases of renal masses excludingsimple cyst for possible differential points between each other. The results were as follows: 1. Among the 67cases, 44 cases(65.7%) were tumorous lesions and majority were malignant tumors. 2. Iso or hyperechoic lesions arerelatively specific finding suggestive of the tumorous lesions. 83.3% of isoechoic lesions and 85.0% ofhyperechoic lesions were tumor. 3. Tumor echogenecity of the renal cell carcinoma was variable. Of the 23 renalcell carcinomas, 10 were isoechoic, 8 were hypoechoic and 5 were hyperechoic lesions. 4. In hypoechoic lesions,findings of acoustic enhancement and wall echo were suggestive of nontumorous lesion. 5. There was no directcorrelation between echogenecity of the mass and tumor vascularity. 6. IVP findings were not sensitive andnonspecific for renal mass lesions, so ultrasound could be the initial step of diagnostic modality for evaluationof the renal mass.
Acoustics
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Carcinoma, Renal Cell
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Diagnosis
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Mass Screening
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Methods
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Sensitivity and Specificity
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Ultrasonography
2.Early Doppler Echocardiographic Determination of Left Ventricular Diastolic Filling Defect In Adult Onset Diabetes Mellitus.
In Soo PARK ; Chul Min KIM ; Seung Suk CHUN ; Jong Sang KIM ; Kyoo Bo CHOI ; Soon Jo HONG ; Jin Kap KIM ; Seog Dong KIM
Korean Circulation Journal 1990;20(2):174-184
To determine the early diagnostic parameters of the left ventricular diastolic filling defect in the uncontrolled adult onset diabetes mellitus, 86 diabetics were evaluated from the left ventricular inflow velocity pattern using pulsed Doppler echocardiography compared with normal 21 subjects. The diabetics were divided into 3 groups according to the presence or absence of background diabetic retinopathy(RE or coexisting cardiovascular diseases(group I : 34 cases without RE, group II : 24 cases with RE, group III : 28 cases with CVD). RE was thought to be having microangiopathy, but the cases with persistant massive proteinuria were excluded in this study. The left ventricular inflow velocity patterns were recorded from the apical approach. Peak velocity of the rapid filling phase(PFVE), that in the atrial systole(PFVA), E/A ratio, acceleration time(AT), deceleration time(DT), acceleration rate(ATR) and deceleration rate(DTR) were measured in the left ventricular inflow patterns. The results were ; 1) PFVE, AT and ATR in group I(56.26+/-12.21mm/sec, 70.91+/-14.98msec, 858.5+/-247mm/sec2), group II(51.91+/-14.35mm/sec, 64.84+/-14.98msec, 855.7+/-248.5mm/sec2) and group III(50.07+/-12.45mm/sec, 67.59+/-17.46msec, 817.5+/-266.8mm/sec2) were not significantly changed(p>0.05) compared to the controls(50.24+/-8.24mm/sec, 66.19+/-10.98msec, 784.5+/-221mm/sec2). 2) PFVA and DT in group I(51.21+/-14.86mm/sec, 156.2+/-23.42msec) and group II(64.26+/-13.93mm/sec, 64.84+/-14.13msec) were significantly increased(p<0.05, p<0.0001) compared to the controls(43.43+/-9.1mm/sec, 140.05+/-25.22msec). But those were not significantly different between group II and group III(p>0.05). 3) E/A ratio was significantly decreased in group II(0.82+/-0.21) and III(0.75+/-0.23) compared to the controls(1.19+/-0.25, p<0.0001) or group I(1.16+/-0.41, p<0.0001). But not significantly different between group II and group III(p>0.05) was noted. 4) DTR was also decreased in group II(311.9+/-95mm/sec2, p<0.05) and group III(297.7+/-125.8mm/sec2, p<0.05) compared to the controls(370.2+/-88mm/sec2) and group I(379.8+/-126mm/sec2). In conclusion, left ventricular diastolic filling defect in adult onset diabetics could be determined by using a various parameters of the pulsed Doppler echocardiography, which were closely related with diabetic retinopathy(RE). And DT and PFVA could be used as good parameters for early determination of the left ventricular diastolic filling defect in diabetics even without microangiopathy.
Acceleration
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Adult*
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Deceleration
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Diabetes Mellitus*
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Diabetic Angiopathies
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Echocardiography*
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Echocardiography, Doppler, Pulsed
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Humans
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Proteinuria