Abstracts
A series of 440 patients studied by echoencephalography is reported. Rather than dividing the patients in the classic two groups of less than 3 mm and more than 3 mm deviation of the midline, the patients in this study were divided into three groups, correlating the degree of midline shift to the presence of intracranial pathology. Group I, showing 0 to 2.5 mm shift proves to be normal with a "miss" rate of only 10%. Group II, showing 2.5 to 3.5 mm shift is regarded as a borderline group with an incidence of significant intracranial pathology of 46%, clearly indicating the need for further evaluation. Group III, demonstrating greater than 3.5 mm shift from the midline, is designated with confidence as abnormal, with a yield of significant intracranial pathology of 100% in this study.
Os autores estudaram por meio do ecoencefalógrafo 440 pacientes os quais foram divididos em três grupos, de acordo com a medida do desvio das estruturas centrais do cérebro (ao contrário dos clássicos dois grupos — com menos de 3 mm e mais de 3 mm de desvio). Subseqüentemente cada um dos três grupos foi analisado com relação ao diagnóstico final de cada paciente. Os pacientes do grupo I, com desvio máximo de 2,5 mm e considerados normais com relação ao ecoencefalograma, apresentaram aproximadamente 10% de patologia intracraniana que não foi denunciada pelo eco. O grupo II, considerado questionável e com desvio de 2,5 até 3,5 mm, mostrou uma incidência de patologia intracraniana de 46% e, porisso mesmo, claramente necessita outros meios diagnósticos. No grupo III, com mais de 3,5 mm de desvio e considerado anormal, quase todos os doentes apresentaram patologia intracraniana séria, principalmente de ordem tumoral.
Studies in A-scan echoencephalography. Evaluation of a proposed two phase shift
Helio Lemmi; Amin A. Faris; Joseph Belluomini
Departments of Neurology and Pathology, Baptist Memorial Hospital and the University of Tennessee College of Medicine, Memphis, Tennessee
SUMMARY
A series of 440 patients studied by echoencephalography is reported. Rather than dividing the patients in the classic two groups of less than 3 mm and more than 3 mm deviation of the midline, the patients in this study were divided into three groups, correlating the degree of midline shift to the presence of intracranial pathology. Group I, showing 0 to 2.5 mm shift proves to be normal with a "miss" rate of only 10%. Group II, showing 2.5 to 3.5 mm shift is regarded as a borderline group with an incidence of significant intracranial pathology of 46%, clearly indicating the need for further evaluation. Group III, demonstrating greater than 3.5 mm shift from the midline, is designated with confidence as abnormal, with a yield of significant intracranial pathology of 100% in this study.
RESUMO
Os autores estudaram por meio do ecoencefalógrafo 440 pacientes os quais foram divididos em três grupos, de acordo com a medida do desvio das estruturas centrais do cérebro (ao contrário dos clássicos dois grupos com menos de 3 mm e mais de 3 mm de desvio). Subseqüentemente cada um dos três grupos foi analisado com relação ao diagnóstico final de cada paciente. Os pacientes do grupo I, com desvio máximo de 2,5 mm e considerados normais com relação ao ecoencefalograma, apresentaram aproximadamente 10% de patologia intracraniana que não foi denunciada pelo eco. O grupo II, considerado questionável e com desvio de 2,5 até 3,5 mm, mostrou uma incidência de patologia intracraniana de 46% e, porisso mesmo, claramente necessita outros meios diagnósticos. No grupo III, com mais de 3,5 mm de desvio e considerado anormal, quase todos os doentes apresentaram patologia intracraniana séria, principalmente de ordem tumoral.
Texto completo disponível apenas em PDF.
Full text available only in PDF format.
62 South Dunlap Memphis, Tennessee 38103 U.S.A. (Dr. H. Lemmi address).
This study was partially supported by U.S.P.H. Grant NB-05274.
- 1. AMBROSE, J. Pulsed ultrasound: illustrations of clinical applications. Brit. J. Radiol. 37:165, 1964.
- 2. BALLANTINE, H. T.; BOLT, R. H.; HUETER, T. F. & LUDWIG, G. D. On detection of intracranial pathology by ultrasound. Science 112:525, 1950.
- 3. DeVLIEGER, M. & RIDDER, H. J. Use of echoencephalography. Neurology (Minneapolis) 9:216, 1959.
- 4. DREESE, M. J. & NETSKY, M. G. The clinical use of echoencephalography. Virg. Med. month 90:539, 1963.
- 5. FORD, R. & AMBROSE, J. Echoencephalography: the measurement of the position of mid-line structures in the skull with high frequency pulsed ultrasound. Brain 86:189, 1964.
- 6. JEFERSON, A. Some experiences with echoencephalography. J. Neurol. Neurosurg. a. Psychiat. 22:83, 1959.
- 7. JEFFERSON, A. Clinical experiences with echoencephalography. Acta neu-rochir. 10:392, 1982.
- 8. JEPPSON, S. Echoencephalography: the midline echo. An evaluation of its usefulness for diagnosing intracranial expansivities and an investigation into its sources. Acta. chir. Scand. Suppl. 272, 1961.
- 9. LAPAYOWKER, M. S. & CHRISTEN, G. E. Echoencephalography in general hospital practice. Amer. J. Roentgen. Radiother. a. nuc. Med. 93:803, 1965.
- 10. LEKSELL, L. Echo-encephalography: detection of intracranial complications following head injury. Acta. chir. Scand. 110:301, 1955-1956.
- 11. LEKSELL, L. Echo-encephalography: midline echo from the pineal body as an index of pineal displacement. Acta. chir. Scand. 115:255, 1958.
- 12. LITHANDER, B. Clinical and experimental studies in echoencephalography. Acta, psychiat. Scand., Suppl. 159, 1961.
- 13. TAYLOR, J. C.; NEWELL, J. A. & KARVOUNIS, P. Ultrassonics in the diagnosis of intracranial space occupying lesions. Lancet 1:1197-1199, 1961.
- 14. WHITE, D. N.; CHESEBROUGH, J. M. & BLANCHARD, J. B. Studies in ultrasonic echoencephalography: A-Scan determination of the M-echo position in a group of patients. Neurology (Minneapolis) 15:81, 1965.
Publication Dates
-
Publication in this collection
23 Apr 2013 -
Date of issue
Sept 1969
