4D laryngeal CT data.xlsx

Data set of laryngeal measurements taken from
31 people with Parkinson's disease (pwPD) of varying disease durations and severities, and 19 healthy controls. Participants were scanned in the supine position and pwPD were
scanned on the 'off' medication state. During a continuous CT acquisition
scanning period of 5 seconds, participants were instructed to produce five
short phonations of /i/ quickly and clearly. Images were re-constructed to
produce continuous multiplanar images of the larynx at 100ms per frame. We removed all data from the pre-vocalization
period. A fiducial marker was placed on the most medial aspect of the left and
right arytenoid cartilages. The data set includes the following measurements:

1. GA: The glottic
area in mm2 for each timepoint for each participant which was segmented
out using the Phillips IntelliSpace Portal software program.

2. IAD: The
inter-arytenoid distance in mm was defined as the Euclidean distance between
the left and right arytenoid cartilages for each timepoint.

3. LAM and RAM: Refers
to the interval distance moved in mm by the left and right arytenoids between
successive timepoints. Negative values refer to adduction movements towards the midline, while positive values are abduction movements away from the midline.

Patient demographics are given as follows:
Age - Given in years.
Diagnosis - PD: Parkinson's disease; CON: Controls
Duration - Given in months.
UPDRS - Refers to MDS-UPDRS part III motor scores.