Dataset

This data set contains ultrasound image, tissue ablation. and temperature data measured in the study reported in the article:

Real-time control of radiofrequency ablation using three-dimensional ultrasound echo decorrelation imaging in normal and diseased ex vivo human liver

Elmira Ghahramani, Peter D Grimm, Benjamin E Weiss, Nicholas S Schoenleb, Alexander J Knapp, Jiang Wang, Syed A Ahmad, Shimul A Shah, Ralph C Quillin III, Sameer H Patel

Physics in Medicine and Biology, 2025
 https://iopscience.iop.org/article/10.1088/1361-6560/adaacb

To best understand and use this data set, please refer to this article.

Files in the data set include:

Annotated Excel spreadsheet containing summary data for all 109 trials in this study (12 preliminary trials, followed by 97 primary trials; see spreadsheet for variable listing):
ExVivoHumanLiver_RFA_Decorrelation_SummaryData.xlsx

CSV spreadsheet containing the same summary data without annotations:
ExVivoHumanLiver_RFA_Decorrelation_SummaryData.csv

MATLAB data file (version 7) containing the same summary data, within the structure variable 'summary':
ExVivoHumanLiver_RFA_Decorrelation_SummaryData.mat

Example MATLAB script demonstrating reading and some analysis of results from all trials, with PDF of code and its output:
ExVivoHumanLiver_RFA_Decorrelation_ExampleScript.m
ExVivoHumanLiver_RFA_Decorrelation_ExampleScript.pdf

MATLAB data files (version 7) containing results from each trial:
ExVivoHumanLiver_RFA_Decorrelation_RawData_Trial1.mat through ExVivoHumanLiver_RFA_Decorrelation_RawData_Trial109.mat.

Each of these files contains the structure variable "rawdata", containing the following fields for each trial:

segmented_ablation_zone:
60x60x60 logical array (step size 1 mm) of segmented liver tissue map (1=ablated, 0=unablated). Dimensions are (z,y,x) as defined in Ghahramani et al. (2025), with z being range from the transducer surface (horizontal in room coordinates), y the azimuthal array direction (horizontal in room coordinates), and x the elevational array direction (vertical in room coordinates). The RFA probe was placed with its tip approximately at the center of this volume, with its needle parallel to the x axis.

IQ_echo_data:
60x60x60x2xN complex array containing beamformed, demodulated IQ (in-phase/quadrature) echo data interpolated onto the same grid. The array of echo volumes comprises N pairs (one pair acquired every 22 s), with the two volumes from each pair separated by the inter-frame time of 50 ms.

instantaneous_decorrelation:
60x60x60xN real array containing echo decorrelation per ms (linear scale) computed for each frame pair, using the equation and methods from section 2.3 in Ghahramani et al. (2025).

thermocouple_locations:
4x3 real array (same for each trial), with each row comprising the (z,y,x) coordinates (voxel indices within the 60x60x60 grid) of a corresponding thermocouple integrated into the RFA probe.

thermocouple_temperatures:
4xM real array, with each row comprising the measured temperatures (degrees C) measured during ablation, synchronous with the last M ultrasound IQ and decorrelation frames of each trial (not available for trials 30, 78, 91, and 102-109).

decorrelation_at_thermocouples:
4xM real array, with each row comprising the measured decorrelation per ms (linear scale) at each thermocouple location, synchronous with the last M ultrasound IQ and decorrelation frames of each trial.

Creador

• Mast, T. Douglas

Licencia

• Attribution 4.0 International

Presentador

T. Douglas Mast

Colegio

• Engineering and Applied Science

Departamento

• Biomedical Engineering

Fecha de creacion

• 2025

Editor

• University of Cincinnati

URL relacionada

•  https://iopscience.iop.org/article/10.1088/1361-6560/adaacb

Software requerido

• MATLAB, Octave, or other software capable of reading .mat data files

Digital Object Identifier (DOI)

Identificador: doi:10.7945/2g9q-t294
Enlazar: https://doi.org/10.7945/2g9q-t294

Este enlace DOI es la mejor manera para que otros citen su trabajo.

Elementos

Miniatura	Título	Fecha de subida	Visibilidad	Acciones
	ExVivoHumanLiver_RFA_Decorrelation_SummaryData.xlsx	2025-06-03	Acceso Abierto	Press to Selecciona una acción Descargar
	ExVivoHumanLiver_RFA_Decorrelation_SummaryData.csv	2025-06-03	Acceso Abierto	Press to Selecciona una acción Descargar
	ExVivoHumanLiver_RFA_Decorrelation_SummaryData.mat	2025-06-03	Acceso Abierto	Press to Selecciona una acción Descargar
	ExVivoHumanLiver_RFA_Decorrelation_ExampleScript.m	2025-06-03	Acceso Abierto	Press to Selecciona una acción Descargar
	ExVivoHumanLiver_RFA_Decorrelation_ExampleScript.pdf	2025-06-03	Acceso Abierto	Press to Selecciona una acción Descargar
	ExVivoHumanLiver_RFA_Decorrelation_RawData_trial1.mat	2025-06-03	Acceso Abierto	Press to Selecciona una acción Descargar
	ExVivoHumanLiver_RFA_Decorrelation_RawData_trial2.mat	2025-06-03	Acceso Abierto	Press to Selecciona una acción Descargar
	ExVivoHumanLiver_RFA_Decorrelation_RawData_trial3.mat	2025-06-03	Acceso Abierto	Press to Selecciona una acción Descargar
	ExVivoHumanLiver_RFA_Decorrelation_RawData_trial4.mat	2025-06-03	Acceso Abierto	Press to Selecciona una acción Descargar
	ExVivoHumanLiver_RFA_Decorrelation_RawData_trial5.mat	2025-06-03	Acceso Abierto	Press to Selecciona una acción Descargar