Film: 9109

Medicine | 1970 | Sound | Colour

Clip:

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Synopsis:

E. M. I. scanner , the proven advance in Neuroradiology at Atkinson Morley Hospital , London.

Close up of a patient being examined by the EMI scanner. View of a radiographer behind a window, she is directing the EMI examination. Live EMI scan of the brain. A quantitative examination (computerized printout). Another view of the radiographer operating the EMI scanner. Close up of the patient's head being scanned. View of the radiographer standing next to a computer which processes the EMI scans, she moves to another machine. Close up of the radiographer operating the viewing screen (allows to view the brain scans). Close up of brain scans (brain slices). View of the scanning unit and of the patient's couch. Close up of the X-Ray control unit. Close up of the computer cabinet which contains the computer, the magnetic disk and the control dials. Close up of the viewing unit. Close up of the line printer. Close up of the numerical printout. General view of the radiographer's room. A short animation that explains how the EMI produces brain scans. Close up of the patient head being scanned by the EMI scanner. Another short animation which explains how the EMI scan is connected to the computer and how the computer processes the data. Live brain scan as viewed on the viewing screen. Close up of the radiographer operating the polarized camera which photographs the displayed scan. Close up of the photographed brain slice. Close up of the line printer. Close up of the numerical printout (records the values of the X-Ray absorption). A chart explaining the EMI scanner's sensitivity to various tissues. Close up of the "window width" control dial (selects the range of X-Ray absorption values). A short animation using the chart to explain how different control setting can adjust for various sensitivities. Close up of the "window width" dial which is set to 30 units. Live EMI scan which was done by varying the dial from -500 to +30, it is clear that all absorption values less than zero will appear black and all absorption values greater than +30 will appear white. Close up of the dial being adjusted to suit the material under examination. Close up of the "window width" dial being set to "measure". The resulting viewing EMI scan. Another view of the radiographer examining the patient. A short animation illustrating the X-Ray dosage used to scan the skull. Close up of the patient's head being scanned. A short animation which illustrates how the head is held for examination, the head is surrounded by water, the water acts as a reference medium, produces the range of X-ray absorption values, that is, it insures accuracy and stability for the calibration of the EMI scanner. Another view of the patient being scanned. Close up of a patient being prepared for examination. The patient's head is placed in the head bag and the patient's position is adjusted. The head bag is filled with water. View of the patient ready for examination. The radiographer touches a control panel. Another close up of the patient being scanned. View of the patient being scanned by the EMI scanner. Live EMI scanning pictures. Close up of the numerical printout. Flow chart showing the major optinal facilities available to use with the EMI scanner. A radiographer picks up a computer magnetic tape and puts it on a digital IBM computer, the view screen shows a slice of brain. Close up of the magnetic tape being laced on the digital computer. The radiographer takes a polarized photograph of the scan. View of the viewing screen showing a slice of brain. Close up of a brain slice displayed on the viewing screen, followed by close ups of the dials. The flow chart is shown again. Another close up of a brain slice displayed on the viewing screen. The radiographer takes out a large floppy disk from the computer, she files the floppy disk with the photographs of the patient's scans. A EMI brain scan of a three year old child showing a large posterior tumour. Four EMI brain scans showing haematoma. Close up of two EMI scans which show the location of a tumour (an astrocytoma). An EMI scan revealing an eye tumour. View of a patient's head being scanned by the EMI scanner. A brain slice is displayed on the viewer. Photograph of an EMI brain slice. Close up of the patient's head being scanned. Another view of the patient being scanned.


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