MR scans were obtained at 0.5 and 1.0 T in 40 patients with 46 intracerebral hematomas categorized as hyperacute (0-2 days), acute (3-7 days), subacute (8-14 days), and chronic (15 days to 6 years). In a retrospective review, the signal intensity of the lesions was compared with that of normal white matter of the brain on spin-density, T1-, and T2-weighted spin-echo and T1-weighted gradient-ech...

The movements of two ultrasound echo signals, believed to arise from the anterior mitral leaflet and from the mitral ring, were studied in 30 normal subjects and in 100 heart-catheterization patients. Fifty patients had proven mitral stenosis. The echo from the anterior mitral leaflet is shown to have a complex pattern of movement. This pattern is analyzed into the opening and closing movements...

Ultrasonic inspection has been widely used to detect defects in composite materials such as internal discontinuity, cracks, delaminations, inclusions, lack of bond etc. However when the bonded specimen has small thickness, the echo from the defect region makes it difficult to identify the echo from the unflawed· region. To overcome these disadvantages, different statistical pattern recognizing ...

background: the purpose of the study was to evaluate menstrual and reproductive outcome in patients diagnosed with asherman’s syndrome on hysteroscopy and to assess the role of hysteroscopic adhesiolysis. methods: a prospective study was performed for patients having intrauterine adhesion at a tertiary care teaching hospital, indore, india for a period of 2 years. findings at hysteroscopy, deta...

The use of two markers of prosodic finality in French, vowel lengthening and high vowel breathiness/devoicing, were compared among statements and questions of various types (echo-questions, Wh-questions, questions with inverted subject and verb). The comparison focuses on the relation between sentence-final intonation and the other markers of finality. The intonation pattern of statements and W...

Liver function tests were assessed in 60 unselected out-patient diabetics stabilized on insulin or oral hypoglycaemic agents. Routine liver function tests, particularly plasma concentrations of gamma-glutamyl transpeptidase and alkaline phosphatase were elevated occasionally but rarely to more than twice the upper limit of normal. There was no correlation between measures of diabetic control an...

In four patients, echocardiography showed duplication of an aortic wall echo. An aortic dissection was present in only one. Other causes for the echocardiographic pattern were abscess in the interventricular septum, mitral stenosis, and dilatation of the noncoronary sinus of Valsalva. Division of the echo from the mitral ring into two separate posterior aortic wall echoes was seen only in the p...

Using the MU radar at Shigaraki, Japan (34.85°N, 136.10°E), we measure the power distribution pattern of VHF radar echoes from the mid-troposphere. The large number of radar beam-pointing directions (320) allows the mapping of echo power from 0° to 40° from zenith, and also the dependence on azimuth, which has not been achieved before at VHF wavelengths. The results show how vertical shear of t...

Fig.4: Temperature changes of a cheese phantom at the hottest voxel during FUS heating experiments. While measurements using GE fast gradient-echo sequence are echo time-dependent (a), the measurements using 2DRF pulse for fat suppression are very similar (b). With excitation pattern of Fig.2d, both fat suppression and 2D excitation were achieved, resulting in improvement in temporal resolution...

INTRODUCTION The chemical shift artifact (CSA) results from temporally undersampling a spatial-spectral distribution along a tilted k-t trajectory. This is illustrated in Fig. 1 for the case of H imaging. Figure 1(a) shows a typical H spatial-spectral distribution, in which the two predominant spectral components are from lipid and water protons. Figure 1(b) shows the k-t space sampling pattern...