Biomedical subjects

Z Abe

Publications and source records attributed to Z Abe.

13 recordsLinked to original sources

PubMed1992

Spatial localisation of NMR signals and electrical scanning of sensitive regions by the magnetic focusing method.

The spatial localisation of NMR signals by the magnetic focusing method is examined and a method for electrical scanning of a spatially localised region is proposed. The small amount of signal from points of the star taper in static field focusing can almost be neglected, and the spatial localisation of the signal corresponds to the shape of a prolate spheroid in the centre region of the star-shaped focusing field. Electrical scanning of the focused region can be achieved at any position in the magnet system by superimposing linear field gradients on the focused field in the scanning direction. These are the inherent limitations of the static magnetic field focusing method. The embodiment of the scanning movement of the focused field is also confirmed.

Humans↗

PubMed1982

Elimination of EKG artifacts from EEGs recorded with balanced non-cephalic reference electrode method.

The EKG artifacts contaminating EEGs recorded by the balanced non-cephalic reference electrode system were removed from EEGs by using a device composed of a one channel averager and simple hardware. This device has the following advantages to the others which have been previously proposed: (1) it is possible by averaging of a few (i.e., 5) EKG artifacts in EEG records successfully with only one channel averaged EEG derived from an earlobe; (2) the averaged EKG pattern is able to follow rapid EKG pattern change due to altered body position; (3) the possibility of being affected by another kind of artifact was decreased, because the time of averaging process to obtain averaged EKG became shorter. A remaining problem in achieving a complete removal of EKG artifacts (maximally of 100 micro V) was beat-by-beat small changes in EKG wave forms due to the respiratory cycle. Therefore, it was felt that our method was sufficiently accurate for clinical examination of EEG.

Computers↗

PubMed1982

[A study of the correlation between the stromal reaction to the primary lesion and immunological parameters in patients with cervical cancer (author's transl)].

A correlation between the stromal reaction to the primary lesion and the clinical immunoparameters, such as, the depth of primary lesion, regional lymph node metastasis, delayed hypersensitivity reactions (DNCB, PPD and PHA skin reaction), peripheral lymphocyte count, peripheral monocyte count, peripheral lymphocyte blastogenesis to PHA and prognosis were studied in patients with cervical cancer (stage Ib, II). All patients were treated with curative operation. The degree of stromal reaction was classified to 3 groups, that is, marked stromal reaction group, moderate stromal reaction group and slight stromal reaction group and the following results were obtained. 1) There was a significant correlation between the degree of stromal reaction and the depth of primary lesion, regional lymph node metastasis (p less than 0.05). 2) The degree of stromal reaction was correlated with the positive rate of DNCB skin reaction (p less than 0.05), but there was no significant correlation between the degree of stromal reaction and the positive rate of PPD and PHA skin reaction. 3) The degree of stromal reaction was not correlated with the count of peripheral lymphocyte, monocyte and the ability of lymphocyte blastoid transformation. 4) The recurrence rate in marked stromal reaction group was 13.6%; 22.2% in moderate group and 28. 6% in slight group. There was no significant correlation in the group. 5) Five-years-survival rate in marked stromal reaction group ws 86.4%; 81.5% in moderate group and 71.4% in slight group. There was also no significant correlation in the group.

Carcinoma, Squamous Cell↗

PubMed1982