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At least 73 records · Page 4Linked to original sources
PubMed1984

Strip kymography of the glottis.

In this paper, a new photokymographical method of recording vocal cord vibrations is described, which has considerable advantages over the hitherto known method of larynx photokymography. Its temporal dissolving power is increased and the registration time can be prolonged to any extent. For one registration a series of so-called strip kymograms has to be made, where each single photo shows vibration-dependent, wave-formed distortions of the vocal cord margins of a selected section of the glottis. The possibilities of measurement are indicated. In some examples of strip kymograms the diagnostic efficiency of this method is demonstrated.

Glottis↗
PubMed2000

Functional imaging of vocal fold vibration: digital multislice high-speed kymography.

For the diagnosis of voice disorders, and especially for the classification of hoarseness, direct observation of vocal fold vibration is essential. Furthermore, a quantitative description of the movement of the vocal fold becomes increasingly necessary to document and compare findings as well as the progression of speech therapy. On the base of digital high-speed sequences of vocal fold vibration, multiple "functional images"-also called digital kymograms-are obtained using image- and signal-processing algorithms. Digital kymograms can serve as a powerful aid for visualization, description, and classification of vocal fold vibration and as an intermediate step for image interpretation by biomechanical modeling. This visualization technique will be discussed and compared to other techniques currently available: videokymography and videostroboscopy. The technique is applied to several clinical examples: aperiodic processes (phonation onset), irregular vocal fold vibration (paralysis of the recurrent nerve), particular vibration modes (anterior-posterior modes), and running speech.

Humans↗
PubMed1984

Rotational kymography. Technique for automated analysis of cine left ventriculograms.

A new device provides an automatic photographic record of left ventricular contraction and expansion. A radially slotted disk is interposed between the moving cine left ventriculogram and a disk of photographic film. By rotating either the slotted disk or the film, a kymographic record of regional wall motion is obtained. Unlike more complex computer programs, the speed as well as the magnitude of contraction can be determined.

Automation↗