ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1978.tb02043.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1978.tb02044.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1978.tb02045.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

ABSTRACTSeventy‐five cases of pharyngeal malignancy were reviewed to determine the place of xeroradiography in their management. Comparison was made with plain radiography, conventional tomography and barium studies. Nasopharyngeal lesions and lesions in the midline were most conveniently demonstrated with a plain lateral xerograph. Laterally placed tumours were best shown with conventional AP tomography and with a barium examinatio

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1978.tb02046.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1978.tb02047.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

SUMMARY88 patients with non‐opacification of the gallbladder were examined by Ultrasound of the right upper quadrant of the abdomen. Criteria for the diagnosis of gallstones are described. Employing such criteria we have had no false positive results in the diagnosis of calculi. Our overall accuracy rate has been 90% and we feel that this has been improved in examinations after this analysis was completed by expanding our criteria to include stones and their acoustic “shadow”, even when the gallbladder itself cannot be demonstrated.Thirty‐three patients with jaundice were examined by Ultrasonography as an initial procedure, not only because of its accuracy, as shown by our figures, but also because it is a safe, noninvasive technique. Criteria for the diagnosis of obstructive jaundice are described. In those patients with obstructive jaundice caused by pancreatic disease, enlargement of the pancreas was successfully shown. In patients with hepatocellular jaundice, causes such as liver metastases, cirrhosis and Congestive Heart Failure were accurately di

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1978.tb02048.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1978.tb02049.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

SUMMARYFour cases of PYCNODYSOSTOSIS ‐ two from India, one from Indonesia and one from Malawi (Africa) are reported.Fractures of the vertebral arches were observed in all our patients and it is suggested that this is a common type of complication in pycnodysostosis if carefully looked for. Spondylolisthesis follows the vertebral arch fractures and is probably a common complication in older patient

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1978.tb02050.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

SUMMARYA semi‐automatic data acquisition system has been described and practical detail of its application in calibrating an 8MV linear accelerator have been given. Techniques have been described for minimising the quantity of raw data which must be collected, and the precision of this data discussed.The methods described above have also been applied to the calibration of a 4MV Vickers Orthotron, a Picker C9 Cobalt unit and a Toshiba Cobalt unit.ABSTRACTThe calibration of an isocentric linear accelerator presents difficulties in both the quantity of data which must be collected and in the difficulty of obtaining accurate measurements. The hardware required for collection of field data is described and its performance under operational conditions analysed.A calculator based data acquisition system is described, and details of its application to machine calibration given. The principles of calculator data acquisition and analysis are revealed in the light of experience gained in calibrating an 8MV linear accelerato

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1978.tb02051.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1978.tb02052.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY