title: Diagnostic value of microwaves in neurological disorders.
abstract: Lumbar puncture is a key diagnostic investigation in neurological diseases. The effect of microwaves on various biological tissues is an active area of research. This study describes a novel in-vitro method of cerebrospinal fluid (CSF) analysis using microwaves.
  
  
  OBJECTIVE
  To analyze normal and abnormal samples of CSF using microwave in the frequency range 2-3 GHz and to compare the variation of dielectric parameters of the CSF in the above frequency.
  
  
  METHODS
  CSF of 34 patients admitted in the internal medicine ward during a six months period was analyzed for cells, protein and sugar content. The effect of microwaves on the CSF was measured using cavity perturbation technique and the dielectric properties in 2-3 GHz range were studied and compared.
  
  
  CONCLUSIONS
  Microwaves, at frequencies of 2437 MHz, 2682 MHz and 2968 MHz, using the cavity perturbation technique can be used as a potential diagnostic tool in the analysis of CSF in diseases of the central nervous system.
authors: Department of Internal Medicine, Medical College Hospital, Trivandrum, Kerala, India.
authors: Chandrasekharan
authors: C
authors: Rajasekharan
authors: Chandrasekharan
authors: C
authors: Girishkumar
authors: Lonappan
authors: L
authors: Anil
authors: Ashish J
authors: AJ
authors: Mathew
authors: K T
authors: KT
authors: Mathew
mesh_terms: D002555:Cerebrospinal Fluid / Q000737:chemistry*; D025802:Electric Capacitance; D004553:Electric Conductivity; D006801:Humans; D066298:In Vitro Techniques; D008872:Microwaves; D009422:Nervous System Diseases / Q000134:cerebrospinal fluid*; D010865:Pilot Projects; D013129:Spinal Puncture