摘要:

This is an American publication for students and teachers of Radiologic Technicians (Anglice: Radiographers) taking the American National Registry Examination—an examination which must be passed before the technologist is eligible to practise radiological techniques.

DOI:10.1259/0007-1285-42-499-538-b

出版商:The British Institute of Radiology    

年代:1969

数据来源: WILEY

摘要:

Rupture of the long head of biceps is not an uncommon lesion, but the opportunity to carry out soft tissue studies in this condition is limited. On this account, it is felt that it is worth recording the findings in a single case. No previous soft tissue studies on this condition have been found in the literature.Gilcreest (1934) analysed 100 cases under the title of “The Common Syndrome of Rupture, Dislocation and Elongation of the Long Head of Biceps Brachii”. X-ray examination was stated to be usually negative and was mentioned only in the section dealing with tearing of the tendon in the aged.Haldeman and Soto-Hall (1935) quote the earliest reports of this condition by Smith (1835) and Storks (1843).Arthrographic studies of the shoulder joint in this condition have been reported by Fischer (1952) and by Ennevaara (1967). The latter author in his study of the painful shoulder in rheumatoid arthritis found one case with rupture of the long head of biceps. He stated that de Séze (1964) had one case of rheumatoid arthritis in which there was rupture of the biceps tendon also.The long head of biceps arises from the supraglenoid tuberosity at the upper margin of the glenoid cavity. It arches over the humeral head and passes through the bicipital groove where it has a synovial sheath (Codman, 1934).

DOI:10.1259/0007-1285-42-499-539

出版商:The British Institute of Radiology    

年代:1969

数据来源: WILEY

摘要:

The early diagnosis of hydatid cysts of the heart is important because solitary cysts tend to rupture and cause a wide range of complications. Whereas previously the condition could not be treated (Better, Griffel and Brandstaetter, 1963; Dévé, 1901; 1915; 1917; 1928; 1946; 1949; Dighiero, Canabel, Aguirre, Hazan and Horjales, 1958; Grulee, 1905; Hynd, 1924; Kean and Breslau, 1964; Popo and Saviec, 1962; Romanoff and Milwidsky, 1962), progress in cardiothoracic surgery has made it possible to operate successfully on affected individuals.At the Tel-Hashomer Hospital we have encountered three cases of cardiac echinococcosis during the five-year period 1962–67. Two of the cases died. In the third, early diagnosis was made with the aid of cardioangiography and the patient was operated on successfully with a satisfactory two-year followup. This case is reported here.A 17-year-old male, born in Iraq, was first admitted to the hospital in 1961 with severe abdominal pain and extreme weakness. Physical examination did not reveal any abnormal findings. The radiograph of the chest showed normal pulmonary vasculature, enlargement of the heart and a prominent elongated left heart border with a bulge below the pulmonary segment (Fig. la). The ECG showed deep Q waves and inverted T waves in leads I, aVL, V5and V6. A tentative diagnosis of cardiomyopathy was made and the patient was discharged from hospital.

DOI:10.1259/0007-1285-42-499-540

出版商:The British Institute of Radiology    

年代:1969

数据来源: WILEY

摘要:

Polyp of the posterior urethra is an uncommon finding. Campbell (1951) found polyp in about 1 per cent of all boys subjected to urological examination. Kjellberg, Ericsson and Rudhe (1957) found only one case in 1,461 cystourethrographies. Stephens (1963) described six cases and Williams and Abassian (1966) four cases. Other isolated examples (Baghdassarian-Gatewood, Calhoun and Levin, 1957; Gilbert, Gilloz, Salaheddine and Takeshi, 1966; Flanagan, Kiefer and MacDonald, 1963; Lhez and Juskewenski, 1967) are reported in the literature. To our knowledge only one report (Frates and De Luca, 1967) has appeared in the radiological literature. This may be explained by the difficulty in demonstrating such lesions (Lhez and Juskewenski, 1967) because they often suffer from retention of urine. This is the report of a three-year-old boy, presenting with urinary retention, in whom a polyp in the posterior urethra was demonstrated by micturating cystourethrography.A three-and-a-half-year-old Arab boy was admitted to the children's ward with urinary retention. This was his second admission. He had been hospitalised two years previously for the same complaint. At that time, urography was reported as being normal. Urinary examination had been negative. The child's difficulty with voiding had eventually disappeared and he was discharged with a presumptive diagnosis of urethritis. Between admissions he was perfectly well.Examination revealed a healthy, normally developed child. His only complaint was difficulty with voiding which necessitated repeated catheterisation.

DOI:10.1259/0007-1285-42-499-543

出版商:The British Institute of Radiology    

年代:1969

数据来源: WILEY

摘要:

The use of poorly soluble radioactive gases such as xenon 133 and nitrogen 13 in the measurement of regional ventilation and pulmonary blood flow is now well established. Two methods of detecting the radioactivity are commonly used.In one, six pairs of scintillation counters are arranged over the front and back of the chest wall in order to record the activity from the upper, middle and lower zones of each lung, (Ball, Stewart, Newsham and Bates, 1962). The alternative is to use two pairs of counters and to move these over the chest wall (Dollery and Gilliam, 1963).Equipment is available for the monitoring, recording and display of the radioactivity, but to date no stand has been readily available either to carry fixed counters or to move counters as described above.A stand is described which is suitable for moving lung scans and can be simply adapted for multicounter static studies.The basic specification was decided as follows.(a) The stand to be open sided.(b) The open-sided arms to be adjustable relative to each other and capable of carrying two pairs of scintillation counters in opposed sets.(c) The arms to be interchangeable with arms having multi-counter arrangements suitable for static studies.(d) The counters to be adjustable to accommodate varying chest sizes.(e) The axis of scan to be variable. Horizontal, vertical or intermediate positions to be available.(f) The distance traversed under power to be variable (20–30 cm).

DOI:10.1259/0007-1285-42-499-545

出版商:The British Institute of Radiology    

年代:1969

数据来源: WILEY

摘要:

It is not uncommon for radiodiagnostic installations to have more than one table at which the X-ray tube is energised from a common generator and control unit. This expedient offers useful economy in capital outlay and floor space, especially with some modern installations having sophisticated and correspondingly expensive generators and control units. The existence of a single generator and control unit will ensure compliance with para. 3.3.1(iii) of theCode of Practice(1964) in that not more than one radiological procedure can take place in the X-ray room at the same time. It will of course be essential for the room to be provided with appropriate protective screens for the protection of staff and patient at one table (say table 1) while an exposure is made on the other table (say table 2). However, a serious radiation hazard may arise from the situation where a radiographer, having set up a patient on table 1 goes to the control unit and erroneously selects and energises the tube at table 2 where another radiographer is in the act of setting up another patient.

DOI:10.1259/0007-1285-42-499-548

出版商:The British Institute of Radiology    

年代:1969

数据来源: WILEY

摘要:

In attempting to compute clinical dose-time factors from radiobiological models of cellular lethality (Cohen and Scott, 1968; Hall, 1969), it is difficult to distinguish recovery effects due to intracellular “repair” processes (affected by the number of fractions) from those of tissue regeneration (dependent on the intervals between fractions).

DOI:10.1259/0007-1285-42-499-551-a

出版商:The British Institute of Radiology    

年代:1969

数据来源: WILEY

摘要:

We have noted with genuine interest the communication from Rosemary French (1969) regarding her preparation of a technetium colloid and an indium colloid for liver scanning.In February, 1967, when the99Mo–99mTc generator system was first added to the radiopharmaceuticals used at this institute, the technetium sulphur colloid was prepared according to the method of Larson and Nelp (1966), with 6 per cent dextran (molecular weight 75,000) as stabiliser.

DOI:10.1259/0007-1285-42-499-552

出版商:The British Institute of Radiology    

年代:1969

数据来源: WILEY

摘要:

It has been reported by Town (1967) that when HeLa cells in aerobic suspension are irradiated with single 1·3 μsec pulses of fast electrons, the radiosensitivity diminishes after a dose of ∼900 rads. This was attributed to the exhaustion of the oxygen present at the radiosensitive site in the cell, although with bacteria and many chemical systems (Dewey and Boag, 1959) doses of at least tens of kilorads are needed to consume the oxygen initially present in an air-saturated system. Neither Todd, Winchell, Feola and Jones (1968) nor Berry, Hall, Forster and Goodman (1969) were able to obtain the same result as Town (1967), although Berryet al. (1969) were able to demonstrate a diminished radiosensitivity in both HeLa and Chinese hamster cells using doses of greater than 500 rads delivered in 7 nsec.

DOI:10.1259/0007-1285-42-499-553-b

出版商:The British Institute of Radiology    

年代:1969

数据来源: WILEY

摘要:

Evans (1968) has shown that if the fixation time after X irradiationin vitroof human peripheral blood leucocytes is properly chosen the number of dicentric plus ring chromosome aberrations increases approximately in proportion to the power 1·2 of the dose. In contrast, when these aberrations are created inTradescantiapollen orViciaroots the number increases more nearly as the square of the dose. We have become accustomed to expect the square law dependence on theoretical grounds.

DOI:10.1259/0007-1285-42-499-554-a

出版商:The British Institute of Radiology    

年代:1969

数据来源: WILEY