By Stephen Chapman MB BS MRCS MRCP FRCR, Richard Nakielny MA BM BCh FRCR
This ebook supplies a synoptic description of the sensible info of ways to hold out the typical strategies in imaging on which an exam candidate should be anticipated to be common. It doesn't try to disguise rarer ideas past the scope of the examination or to teach the ensuing photographs. each strategy is defined less than a collection of ordinary headings (for instance: equipment, symptoms, apparatus, sufferer practise, approach, aftercare, issues, extra reading).
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Additional resources for A Guide to Radiological Procedures
Bronchospasm. Predisposed to by a history of asthma and concurrent therapy with β-blockers. In most patients the bronchospasm is subclinical. Bronchospasm is much less pronounced with LOCM than with H OCM. LOCM arc preferable in patients with asthma and these patients should also receive steroid prophylaxis. Mechanisms for contrast medium-induced bronchospasm include: 25 31 a. Direct histamine release from mast cells and platelets b. Cholinesterase inhibition c. Vagal overtone d. Complement activation e.
Urograms with the compound Uroselectan were performed. This mono-iodinated compound was developed further into the di-iodinated compounds, Uroselectan-B (Neo-ipax) and diodone (Diodrast) and in 1952 the first tri-iodinatcd compound, sodium acetrizoate (Urokon), was introduced into clinical radiology. Sodium acetrizoate was based on a 6-carbon ring structure, tri-iodo benzoic acid, and was the precursor of all modern water-soluble contrast media. In 1955 a much safer derivative became available - diatrizoate (Urografin, Hypaque).
Radiol. 6 1 , 9 6 3 - 9 6 5 . 1 2. , et al. (1986) Contrast, coagulation and fibrinolysis. Invest. Radiol. 2 1 , 2 4 8 - 2 5 2 . 1 3. Rao, V . M . G. K. (1 982) The effect of ionic and nonionic contrast media on the sickling phenomenon. Radiology 144,291-293. 1 4. M. (1 972) Impairment of red cell transit through the canine lungs following injections of hypertonic fluids. Circ. Res. 3 1 , 5 9 0 - 6 0 1 . 1 5. Golman, K. & Holtas, S. (1 980) Proteinuria produced by urographic contrast media. Invest.
A Guide to Radiological Procedures by Stephen Chapman MB BS MRCS MRCP FRCR, Richard Nakielny MA BM BCh FRCR