MRI DI­AG­NOS­TICS FOR OF THE HEAD

EQUUS - - EQ Medical Front -

PROB­LEMS

A large-scale in­ter­na­tional study of the ef­fi­cacy of mag­netic res­o­nance imag­ing (MRI) in in­ves­ti­gat­ing equine head dis­or­ders sug­gests that the high-tech tool is help­ful but has some lim­i­ta­tions.

Re­searchers re­viewed the records of 84 horses over a 13-year pe­riod at three dif­fer­ent equine hos­pi­tals: The Com­plutense Univer­sity of Madrid, Spain; the An­i­mal Health Trust in New­mar­ket, Eng­land; and Tufts Univer­sity in Mas­sachusetts. Sixty-five horses had neu­ro­log­i­cal prob­lems, 14 had sinonasal dis­or­ders and five horses had al­ter­ations in soft tis­sues.

The col­lected data showed that MRI could pin­point the lo­ca­tion of brain and sinonasal le­sions but did not re­veal the cause of many neu­ro­log­i­cal dif­fi­cul­ties. For ex­am­ple, no ab­nor­mal­i­ties were found on the MRIs of 45 of the 65 horses (69 per­cent) in the study who had a his­tory of neu­ro­log­i­cal prob­lems, con­sist­ing of re­cur­rent seizures re­lated to epilepsy.

Nonethe­less, the re­searchers con­clude that MRI is an oth­er­wise valu­able di­ag­nos­tic tool for dis­or­ders af­fect­ing the equine head.

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