Stenger screening in automated diagnostic hearing test
Method and system are disclosed for automated testing of a patient's hearing. The automated hearing test allows the patient to quickly and accurately test his own hearing. The patient is instructed and prompted for inputs and responses as needed. The patient and/or operator can select one or several tests to be performed, including air and bone conduction testing with masking, speech reception threshold, speech discrimination, tympanogram, acoustic reflex, and otoacoustic emissions testing. Stenger screening is automatically performed for some patients based on the difference in pure tone frequency air conduction thresholds. Multiple languages are supported. Data obtained from one test may be used for another test or another iteration of the same test to calculate masking levels. The automatic hearing test also detects and compensates for ambient noise in the test results. If a contingency occurs, the automated hearing test is configured to page the operator for assistance.
1. A computer-based, multimedia method for conducting Stenger screening of a patient, comprising:
performing a pure tone frequency threshold test on the patient, wherein data obtained during one iteration of the test may be used in subsequent iterations of the test;
checking whether the patient warrants Stenger screening based on the pure tone frequency threshold test;
automatically administering a predetermined number of Stenger tests to the patient if it is determined that the patient warrants Stenger screening; and
determining whether the patient passes or fails the Stenger screening based on a number of positive Stengers produced by the patient;
wherein the step of performing a pure tone frequency threshold test on the patient is performed without human intervention.
2. The method according to claim 1 , further comprising conducting the Stenger screening for all pure tone frequencies in the pure tone frequency threshold test.
3. The method according to claim 1 , further comprising conducting the Stenger screening only for predetermined pure tone frequencies in the pure tone frequency threshold test.
4. The method according to claim 1 , wherein the patient warrants Stenger screening if a difference in air conduction thresholds for the patient's ears exceeds a preset difference limit for a given pure tone frequency.
5. The method according to claim 1 , wherein the Stenger test comprises presenting a pure tone frequency in a good ear of the patient at an intensity level that is higher than that ear's pure tone threshold by a predetermined amount and simultaneously presenting the pure tone frequency in a poor ear of the patient at an intensity level that is lower than that ear's pure tone threshold by a predetermined amount.
6. The method according to claim 1 , wherein the patient fails the Stenger screening if the number of positive Stengers is the same as or greater than a number of negative Stengers.
7. The method according to claim 1 , wherein the Stenger screening is performed automatically after each pure tone frequency threshold test.
8. A system for conducting Stenger screening of a patient, comprising:
transducers, including an air conduction transducer and a bone conduction transducer;
a hearing test device connected to the transducers;
a computer connected to the hearing test device and storing an automated hearing test thereon, the automated hearing test configured to cause the computer to:
perform a pure tone frequency threshold test on the patient, wherein data obtained during one iteration of the test may be used in subsequent iterations of the test;
check whether the patient warrants Stenger screening based on the pure tone frequency threshold test;
administer a predetermined number of Stenger tests to the patient if it is determined that the patient warrants Stenger screening; and
determine whether the patient passes or fails the Stenger screening based on a number of positive Stengers produced by the patient
wherein the automated hearing test is configured to cause a computer to perform a pure tone frequency threshold test on the patient without human intervention.
9. The system according to claim 8 , wherein the automated hearing test causes the computer to conduct the Stenger screening for all pure tone frequencies in the pure tone frequency threshold test.
10. The system according to claim 8 , wherein the automated hearing test causes the computer to conduct the Stenger screening only for predetermined pure tone frequencies in the pure tone frequency threshold test.
11. The system according to claim 8 , wherein the automated hearing test causes the computer to conduct Stenger screening if a difference in air conduction thresholds for the patient's ears exceeds a preset difference limit for a given pure tone frequency.
12. The system according to claim 8 , wherein the automated hearing test causes the computer to administer the Stenger test by presenting a pure tone frequency in a good ear of the patient at an intensity level that is higher than that ear's pure tone threshold by a predetermined amount and simultaneously presenting the pure tone frequency in a poor ear of the patient at an intensity level that is lower than that ear's pure tone threshold by a predetermined amount.
13. The system according to claim 8 , wherein the automated hearing test causes the computer to fail the patient if the number of positive Stengers is the same as or greater than a number of negative Stengers.
14. The system according to claim 8 , wherein the automated hearing test causes the computer to perform the Stenger screening automatically after each pure tone frequency threshold test.
15. A computer-based, multimedia method for conducting Stenger screening of a patient, comprising:
checking whether a difference in pure tone frequency air conduction thresholds for the patient's ears exceeds a preset limit for a given pure tone frequency;
automatically presenting a pure tone frequency in a good ear of the patient at an intensity level that is higher than that ear's pure tone threshold by a predetermined amount and simultaneously presenting the pure tone frequency in a poor ear of the patient at an intensity level that is lower than that ear's pure tone threshold by a predetermined amount if the difference is greater than a preset difference limit; and
determining whether the patient passes or fails the Stenger screening, wherein the patient fails the Stenger screening if a number of positive Stengers is the same as or greater than a number of negative Stengers;
wherein the step of automatically presenting a pure tone frequency in a good ear of the patient is performed without human intervention.
16. The method according to claim 15 , further comprising determining a pure tone frequency air conduction threshold for the patient's ears prior to conducting the Stenger screening.
17. The method according to claim 15 , wherein the preset difference limit is approximately 20 decibels.
18. The method according to claim 15 , wherein the predetermined amount is approximately 7 decibels.
19. The method according to claim 15 , wherein the patient fails the Stenger screening if two positive Stengers are received for any given pure tone frequency.
20. A computer-readable storage medium encoded with instructions for causing a computer to perform the method according to claim 15 .