File formats in Turku PET Centre
| Extension | File type | More information |
|---|---|---|
| .a | ECAT 7.x (HR+) attenuation file | Required in image reconstruction |
| .alg | Allogg blood on-line sampler raw data | Allogg #1 data format |
| .anc | PET ancillary data file for MIAKAT™ | MIAKAT data format |
| .atn | ECAT 6.3 attenuation file | Required in image reconstruction PET raw data in Turku |
| .bat | PC/Windows batch files (scripts) | Batch files are small programs that can be created with any text editor. For example they are used to process blood data |
| .bld | GEMS blood on-line sampler raw data | Scanditronics/GEMS data format |
| PMOD format for plasma and blood TACs | PMOD TAC files can be converted to other formats using tacformat. Several analysis programs can directly read PMOD TAC files. | |
| .bz2 | bzip2 compressed file(s) | Windows command-prompt tools for compression (bzip2) and decompression (bunzip2) are available in TPC. Software can also be downloaded from http://www.bzip2.org |
| .cpr | Carimas project file | Carimas project information, including ROIs. |
| .cpt | CPT file |
CPT format specification. ASCII data file containing the regional tissue time-activity curves (TACs) drawn and calculated using CTI Imagetool (UNIX SunOS) or Vinci. CPT files can be converted to DFT format using cpt2dft. |
| .cr | Count-rate file | ASCII data file containing the true counts collected by the PET scanner during each second of the scanning. Used for time-delay correction |
| .crv | Regional time-activity curves in PMOD CRV format | PMOD TAC files can be converted to other formats using tacformat. Several analysis programs can directly read PMOD files. |
| .csv | Comma-separated values | ASCII file format for storing tabular data. For example, simple TAC data in Excel can be saved in CSV format, and thereafter converted to other TAC formats using tacformat, or used directly, if CSV is well formatted. |
| QView TAC format | QView TAC file can be converted to other formats using tacformat. Frame time information is not included. | |
| 4DM TAC format | Invia 4DM TAC file can be converted to other formats using tacformat. | |
| .dcm | DICOM image | PET images in Turku. DICOM image usually consists of a folder of *.dcm files |
| .dft | Regional TAC file | DFT format specification |
| .exe | PC/Windows executable program file | Programs with command-line interface (CLI) can be used in Command prompt window |
| .fit | File containing parameters of mathematical functions fitted to time-activity curves (TACs) | FIT format specification |
| Input file for [15O]water studies (*_blo.fit) | Time-delay corrected [15O]water blood TAC file | |
| .hc | Head-curve data from HRRT scanner | Convert the head-curve file into usual count-rate format before using it in time-delay fitting |
| .hdr | Analyze 7.5, NIfTI-1, or Inveon/MicroPET image header, if together with *.img file | PET images in Turku |
| .head | Head-curve | An average TAC of whole dynamic image or sinogram used instead of count-rate curve in correction of time-delay |
|
.htm .html |
(X)HTML files to be viewed with WWW browsers, such as Explorer |
Converting TAC file to HTML table Converting result file to HTML table Collecting results into one HTML table |
| .idwc | ROI TAC file in Imanet Hammersmith | Format of *.idwc files |
| .ie | GE Advance database dump file | In-house UNIX program ge2cti was used to extract image data to ECAT 6.3 format. Command-line tools for extracting calibration coefficients, count-rates, etc were also available. |
| .if | Input file in Imanet Hammersmith |
Format of *.if files Plasma (corrected for metabolites) and blood data can be converted between file formats in Turku and in Hammersmith using dft2if and dft2if |
| Interfile image format | Image format for HRRT. Conversion to ECAT with ImageConverter. | |
| .ift | TPC internal format | Description of IFT format and its use. |
| .ima | GE2048 and GE4096 (GE Scanditronix) image file | In-house program ctx2cti to convert ima files to ECAT 6.3 format was used in UNIX. |
| .img |
ECAT 6.3 image (2D), or Analyze 7.5, NIfTI-1, or Inveon/MicroPET image, if together with *.hdr file |
PET images in Turku |
| .jar | Java archive | Java program that can be executed with command java -jar foo.jarJAR in Wikipedia |
| .kbq | TAC file in units [kBq/ml] | Old format of regional TAC files: *.roi.kbq Arterial blood: *ab.kbq Venous blood: *vb.kbq Arterial plasma: *ap.kbq Venous plasma: *vp.kbq |
| .kinPar | PMOD PKIN result file | Model parameters of PMOD PKIN analysis. Tab-delimited text file. |
| .km | PMOD PKIN project file | Data and configuration of a PMOD PKIN project |
| .kmData | PMOD PKIN composite import format | File format for importing all blood and tissue data into PMOD PKIN. Tab-delimited text file. |
| .lis | Scanditronics blood on-line sampler raw data (usually *_blo.lis) | Scanditronics/GEMS data format |
| .n | ECAT 7.x (HR+) normalization file | Required in image reconstruction |
| .nci | TAC file in units [nCi/ml] | Old format of regional TAC files: *.roi.nci Arterial blood: *ab.nci Venous blood: *vb.nci Arterial plasma: *ap.nci Venous plasma: *vp.nci |
| .nii | NIfTI image (single file format) | NIfTI-1; Supported by Carimas, PMOD, and most of TPC C software |
| .nrm | ECAT 6.3 sinogram normalization file | Required in image reconstruction PET raw data in Turku |
| .opj | Origin graphics and data file format | Ask IT group to install Origin to your PC/Windows |
| .par |
Parameter file for old UNIX program mrprec Parameter file for old UNIX program fbprec |
Image reconstruction |
| .petgui | PetGui UI definition file | User Interface definition for PetGui |
| .petguiapp | PetGui session file | Saved PetGui session |
| .petguibatch | PetGui pipeline file | Saved PetGui pipeline |
| .ps | PostScript file | Installing GSview |
| .r | Head-curve data from HR+ scanner | Convert the head-curve file into usual count-rate format before using it in time-delay fitting |
| .rat | File containing fractions of parent tracer in plasma (*.rat, *ap.rat) | Fraction file format |
| Blood-to-plasma ratios (*bp.rat) | Often measured during on-line sampling of blood. Blood TAC can be converted to plasma using this ratio. | |
| .res | Data analysis results |
RES format specification Converting results to HTML tables |
| .roi | Imagetool region-of-interest (ROI) definitions | Drawing and handling ROIs |
| .scn | ECAT 6.3 sinogram (scan file) | Required in image reconstruction |
| .s | ECAT 7.x sinogram | PET raw data in Turku |
| .sif | Scan information file |
Format of SIF file Mandatory with Analyze and NIfTI image to keep time information. |
| .svg | Scalable Vector Graphics, an XML graphics file format | SVG files can be viewed in web browsers; making SVG files from PET TACs |
| .tac | Regional time-activity curves in PMOD CRV format | PMOD files can be converted to other formats using tacformat. Several analysis programs can directly read PMOD files. |
| .tif | Graphics file format TIFF | For viewing PET images on computers without dedicated analysis software; making TIF images from PET images |
| .tsv | TSV file | ASCII data file containing the regional tissue time-activity curves (TTACs) drawn and calculated using Amide. The *.tsv files can be converted to DFT format using tsv2dft. |
| .txt | ASCII text file | Simple text file, made with for example Notepad (Windows) or gedit (Unix/Linux). |
|
Parameter file for program mrprec Parameter file for program fbprec |
Image reconstruction | |
| .v | ECAT 7.x image (volume) | PET images in Turku |
|
.wk1 .wk3 |
Lotus spreadsheet file | PET results were previously collected and processed using Lotus 1-2-3. MS Excel can import Lotus files |
| .xls | Microsoft Excel spreadsheet file | To import data in Excel: convert TAC data or result data into HTML format with
dft2html,
res2html, or
rescoll, and then drag-and-drop the HTML file in Excel. Or save your data in .csv format in Excel, and then convert .csv to DFT. |
| .zip | ZIP compressed file(s) | Windows and macOS can automatically open zip files. 7-zip can additionally make and open .7z files, and is available in all hospital PCs |
Tags: File format, PET
Updated at: 2023-02-13
Created at: 2011-11-12
Written by: Vesa Oikonen, Harri Merisaari