DYNAMITE: DYNamic phAse-contrast MIcro-Tomography of the human middle Ear

These are datasets of dynamic microtomography conducted at the TOMCAT beamline (SLS, PSI).
The samples were fresh-frozen human ear, acoustically stimulated, so vibrating.
The table below give the correspondence between datasets (number and block) and sample name + acoustic stimulation parameter (intensity = sound pressure level in decibels and frequency in hertz).
The h5 file is the set of projections for the different tomography angles, taken during stimulation of the sample.
The waveform.dat file can be used to perform the retrospective gating and sort the projection back according to their acquisition time (corresponding to a specific phase of vibration).

Table of datasets
Dataset Sample Block Intensity Frequency
82 Fresh1 na 125 127
83 Fresh1 na 125 127
84 Fresh1 na 125 127
88 Fresh1 na 140 127
89 Fresh1 na 140 127
90 Fresh1 na 140 127
09 Fresh3 _000 120 128
09 Fresh3 _001 120 128
09 Fresh3 _002 120 128
09 Fresh3 _003 120 128
10 Fresh3 _000 110 128
10 Fresh3 _001 110 128
10 Fresh3 _002 110 128
10 Fresh3 _003 110 128
89 Fresh7 _001 110 128
90 Fresh7 _001 120 128
112 Fresh8 _001 110 128
113 Fresh8 _001 120 128
03 B-Fresh1 _002 110 128
04 B-Fresh1 _002 120 128
144 B-Fresh2 _000 110 128
144 B-Fresh2 _001 110 128
145 B-Fresh2 _000 120 128
145 B-Fresh2 _001 120 128
62 B-Fresh3 _000 110 128
62 B-Fresh3 _001 110 128
63 B-Fresh3 _000 120 128
63 B-Fresh3 _001 120 128

搜集汇总

背景与挑战

背景概述

该数据集名为“DYNAMITE”，是一个专注于人类中耳生物力学研究的动态相位对比显微断层扫描数据集，发布于2023年，由PSI机构提供。数据集包含7 TB的原始数据，通过声学刺激新鲜冷冻人类中耳样本（如不同声强和频率），利用TOMCAT光束线进行动态显微断层扫描，旨在克服中耳研究的技术挑战，以分析声音传输机制。数据包括h5投影文件和waveform.dat文件，支持回顾性门控处理，用于深入探索中耳在生理范围内的振动行为。