摘要:

It is claimed that ante-natal radiological estimation of foetal maturity can now offer a new or improved yardstick to both obstetrician and paediatrician.Although estimates are based on L.M.P. in bulk, they are more reliable in individual cases, and especially where clinical L.M.P. is doubtful or unknown.As might be expected the estimate can be correct to the day and is more often than not correct to within a week. It follows that for some few weeks after birth radiological estimates may well supplant all other methods, they are certainly more comprehensive and probably more accurate as well as more generally applicable than anatomical studies. Justification for incurring whatever radiation risks there may be lies in the probable contribution towards the lowering of foetal mortality which the precision estimate can make. The exact value to the paediatrician has yet to be finally assessed.The basis for estimation is described.

DOI:10.1259/0007-1285-30-359-561

出版商:The British Institute of Radiology    

年代:1957

数据来源: WILEY

摘要:

During the period of the radiation syndrome, the changes in the blood, however dramatic, are probably not basic to the mechanism of death, but are an inevitable secondary consequence. Death, at the critical stage, may be precipitated by haemorrhage or anoxia, or by the occurrence of bacteraemia. The prime cause of death must surely be the exhaustion of one or more stem cell types from the reticulum. Individual differences in quality or quantity of this cell factor determine the individual sensitivity of the subject. Hibernation will postpone, but not prevent, the train of events. But replacement of this factor sufficiently early in the post-irradiation period can prevent the diverse changes.It would seem to be of the utmost importance to find the function or the identity of this cell type. This would not only give us a real understanding of the mechanism and treatment of total body irradiation, but might also enable us to understand some of those diseases of the reticuloendothelial system in which bone marrow failure is a characteristic termination.

DOI:10.1259/0007-1285-30-359-577

出版商:The British Institute of Radiology    

年代:1957

数据来源: WILEY

摘要:

A series of patients is reported and illustrated to indicate the changes which occur in metastatic bone deposits from mammary carcinoma following the exhibition of surgical hormonal treatment including oophorectomy, adrenalectomy, hypophysectomy and orchidectomy. The cases used illustrate the various types of reactions so far encountered during the subsequent follow-up of those patients.

DOI:10.1259/0007-1285-30-359-582

出版商:The British Institute of Radiology    

年代:1957

数据来源: WILEY

摘要:

Registrations are still being accepted for the Annual Congress and Exhibition to be held at the Royal Horticultural Halls and Napier Hall, Westminster, London S.W.1 on November 27–29, 1957.

DOI:10.1259/0007-1285-30-359-589

出版商:The British Institute of Radiology    

年代:1957

数据来源: WILEY

摘要:

A technique is described for post-operative X irradiation of the cerebrospinal axis for medulloblastoma in childhood. Pathological and clinical data indicate that a likely site of tumour recurrence is the posterior cranial fossa, and the method is an attempt at uniform irradiation of this region, while ensuring that the irradiation of cranium and spine may be accurately and safely apposed.

DOI:10.1259/0007-1285-30-359-590

出版商:The British Institute of Radiology    

年代:1957

数据来源: WILEY

摘要:

The effect of X irradiation on the growth of the tails of young mice was investigated. The animals were irradiated when seven days old, and the growth during subsequent weeks was compared with that of litter-mate control animals. The reduction in growth was found to give a reproducible index of radiation damage. The tails of groups of animals were irradiated while breathing various partial pressures of oxygen ranging from one-tenth to three atmospheres. The tails of another group were irradiated with the blood occluded to render them anoxic. In this way the variation of relative radiosensitivity of the growing mouse tail was determined for various partial pressures of oxygen in the respired gas.

DOI:10.1259/0007-1285-30-359-593

出版商:The British Institute of Radiology    

年代:1957

数据来源: WILEY

摘要:

As a source of physical data for radiotherapy, this handbook is a notable improvement on the preceding publication of this kind from Germany, the Grebe and Wiebe dosage tables published in 1950. While the latter was just a set of depth dose tables, the present volume devotes little more than a quarter of its space to this material, the remainder being filled—one could almost say crammed—with a wide variety of technical and scientific information of the kind required by the hospital physicist and his radiotherapy colleagues.

DOI:10.1259/0007-1285-30-359-599

出版商:The British Institute of Radiology    

年代:1957

数据来源: WILEY

摘要:

Film badge monitoring has been carried out in the Diagnostic X-ray Departments of the Medical Division, Harwell, and in the Radcliffe Infirmary, Churchill Hospital and Wingfield-Morris Orthopaedic Hospital, Oxford, for the past two years. It is estimated that the maximum dose to any of the 38 radiographers or radiologists monitored was 50 mr in one month, and the average was about 2–5 mr per week. It is suggested, therefore, that a maximum of 30 mr per week could be adopted for this type of work without interfering with normal techniques, since it is possible to work to within one-tenth of this level even in busy departments, and that this level need not be exceeded for radiographers and others associated with X-ray machines in radiotherapy departments.

DOI:10.1259/0007-1285-30-359-600

出版商:The British Institute of Radiology    

年代:1957

数据来源: WILEY

摘要:

It is with great pleasure that we record the honour conferred on Professor J. S. Mitchell when Her Majesty the Queen approved his appointment as Regius Professor of Physic in the University of Cambridge. Radiologists everywhere, and especially those who are members of the British Institute of Radiology, will be delighted that one of their number has been elected to this ancient and distinguished Chair and they join with the Council of the Institute in wishing him a long and happy tenure of it.

DOI:10.1259/0007-1285-30-359-601

出版商:The British Institute of Radiology    

年代:1957

数据来源: WILEY

摘要:

A system whereby patients have a miniature chest X ray on admission to hospital is described.The equipment, the uses to which it can be put and the method of ensuring that the patient is radiographed on admission are detailed. The necessity for conveying the findings to the ward shortly after admission, and for informing the responsible physician or surgeon of “urgent” cases is dealt with.The results are not compared with those of other series because of necessity the group, as a whole, is “selected”, the reasons for this being given.Of 1690 patients X-rayed, 20 per cent showed some abnormality. These abnormals are subdivided into categories and a brief survey of the findings is made.The basic requirements for running an efficient system, and the benefits derived from it, are detailed.

DOI:10.1259/0007-1285-30-359-602

出版商:The British Institute of Radiology    

年代:1957

数据来源: WILEY