摘要:

AbstractQuantitative blood flow measurements were performed on 37 normal lower limbs with a 128‐channel digital pulsed Doppler (MDPD) system. The evolution of mean flow (QM), peak systolic flow (QS), diastolic flow (QD), and prograde stroke volume (PSV) was observed at rest, during postocclusive reactive hyperemia (PORH), and at 1‐, 2‐, and 3‐min intervals. The QM at rest was 2.9 ± 1.1 ml/s; PORH induced a four‐to fivefold increase in QM and PSV secondary to a slight increase in QS and the disappearance of the reverse protodiastolic component of resting flow. Reverse flow was restored after 1 min. Both QS and QD returned to resting values after 2 min, whereas QM remained significantly higher after 3 min. To provide a better description of the hyperemic response, we also studied the evolution of the pulsatility index as applied the flow curve (PIQ). Similarly, the systolic amplitude index (SAI) is presented. Our study demonstrates that pulsed Doppler techniques can be used for noninvasive quantitative assessment of blood flow at rest and during PORH. The values obtained on normal subjects provide base‐line data for further investigation of pathologica

ISSN:0091-2751    

DOI:10.1002/jcu.1870140302

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractThree ultrasonic methods for estimating fetal weight (Campbell, Warsof, and Shepard) were compared in 124 singleton pregnancies. Fetal abdominal circumference was obtained by use of a map measurer and from diameter measurements and the equation for the circumference of a circle. Campbell's formula for estimating fetal weight was superior between 2,000 and 4,000 g, whereas Shepard's method was slightly better below 2,000 g and over 4,000 g. Hence, varied fetal anthropometric characteristics make it mandatory that several methods be evaluated by each institution before one is selected. With the methods of Campbell and Shepard, use of diameter measurements and the equation for the circumference of a circle resulted in a more accurate estimated fetal weight than when a map measurer was used.

ISSN:0091-2751    

DOI:10.1002/jcu.1870140303

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractAbdominal ultrasonography, including assessment of the liver, spleen, pancreas, great abdominal vessels, and kidneys, was carried out in seven patients with lepromatous leprosy, six patients with tuberculoid leprosy, and 32 healthy Congolese controls. Abnormal ultrasound findings were predominantly detected in the livers of patients with lepromatous leprosy and included an inhomogeneous echo texture of the hepatic parenchyma in all cases. Furthermore, six patients revealed echodense, partly irregular areas up to 1.5 cm × 3 cm in size distributed throughout the liver. These were associated with shadowing and were considered to contain calcium. No abnormal findings were encountered in controls or in patients with tuberculoid leprosy except for one patient with tuberculoid leprosy who had a rounded caudal liver edge. The sizes and volumes of liver, spleen, and kidneys were not different in the three groups

ISSN:0091-2751    

DOI:10.1002/jcu.1870140304

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractReal‐time ultrasound was used in 654 consecutive pregnancies to obtain standard growth parameters for the fetal brain. Measurement of the width of the lateral ventricle (LVW) and hemisphere and their relationships to menstrual age, biparietal diameter, and birth weight were determined. The growth of the LVW was to a great extent independent of birth weight but dependent on menstrual age. Thirteen fetuses with a single ventricular width measurements exceeding +2 SD from the mean were separately evaluated, and all but one case were found to be norma

ISSN:0091-2751    

DOI:10.1002/jcu.1870140305

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractFive females with childhood acute lymphocytic leukemia whose disease relapsed in the pelvis were studied. In all five patients, relapse occurred late in the disease process, and all patients had been in complete continuous remission before relapse. Intravenous pyelogram and barium enema revealed hydronephrosis or a mass effect on the bladder or rectosigmoid colon. In three patients, sonography established the presence of a clinically palpable mass with involvement of the uterus, ovaries, and pelvic side walls. In one patient there was infiltration of the bladder and in another, infiltration of the appendix, both confirmed by biopsy.

ISSN:0091-2751    

DOI:10.1002/jcu.1870140306

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870140307

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870140308

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870140309

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870140310

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870140311

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY