Search found 12 matches

by abhishek_gupta
Wed, 2017-09-13, 04:03
Forum: DCMTK - General
Topic: How to release compressed pixel data from DcmDataset?
Replies: 1
Views: 2139

How to release compressed pixel data from DcmDataset?

Hello Group members, I am working in loading compressed DICOM file as received from from a remote server using below code. I want to do two things here: 1. Free/release compressed pixel data after decompression. 2. Is there a way of creating DcmFileformat OR DcmDataset without compressed pixel data ...
by abhishek_gupta
Wed, 2013-08-28, 11:31
Forum: DCMRT
Topic: Doubt regarding: RT-Dose DICOM pixel data representation
Replies: 1
Views: 9913

Doubt regarding: RT-Dose DICOM pixel data representation

Hello Everyone, I have recently came across an RT-Dose DICOM where pixel data representation of few frames is UINT8 and for others is UINT16. Is it possible to have this kind of data?? If yes, then is it possible to make pixel representation unique because I need to feed this data into MPR visualiza...
by abhishek_gupta
Mon, 2012-10-22, 07:39
Forum: DCMRT
Topic: Logically group RT Plan, Dose and structure set?
Replies: 1
Views: 11026

Logically group RT Plan, Dose and structure set?

Dear Group, I was wondering, as to how does one handle following scenario -- A CT data set pushed to two different treatment planning systems (TPS). This results in two different set's of RT Plan, Dose and Structure sets DICOM file. My question is, as to how do I draw a relationship between RT Plan,...
by abhishek_gupta
Thu, 2012-10-04, 17:00
Forum: DCMTK - General
Topic: How to read 32 bit pixel data?
Replies: 2
Views: 3457

How to read 32 bit pixel data?

Dear Team, How can I read 32 bit RT Dose pixel data per frame? Please help.

Regards,
Abhishek
by abhishek_gupta
Thu, 2012-10-04, 11:38
Forum: DCMRT
Topic: Unable to read pixel data from RT Dose file.
Replies: 13
Views: 34153

Re: Unable to read pixel data from RT Dose file.

You could e.g. the DicomImage class for this purpose. With regard to the length of the PixelData field: 1 pixel consists of 4 bytes in your case, and you have 98 frames ... Today, I have reached a point where I needed pixel data from multi frame RT DOSE. As suggested, I am using DicomImage->getInte...
by abhishek_gupta
Tue, 2012-09-25, 08:00
Forum: DCMRT
Topic: Mapping RT DOSE Grid on CT Image
Replies: 0
Views: 20147

Mapping RT DOSE Grid on CT Image

Hello,

Can someone explain, how can i map rt dose grid on a CT image?

Regards
Abhishek.
by abhishek_gupta
Wed, 2012-09-19, 19:46
Forum: DCMRT
Topic: Unable to read pixel data from RT Dose file.
Replies: 13
Views: 34153

Re: Unable to read pixel data from RT Dose file.

Then everything is ok. Btw, the PixelData element value starts with zeros (0) ;-) Oh, does this mean. If pixel data starts with 0, it wont display in visual studio debugger? I, just ran a loop on pixelData16 and I can see pixel values. Thanks. Hello Riesmeier, how do I determine max dose pixel valu...
by abhishek_gupta
Wed, 2012-09-19, 13:08
Forum: DCMRT
Topic: Unable to read pixel data from RT Dose file.
Replies: 13
Views: 34153

Re: Unable to read pixel data from RT Dose file.

J. Riesmeier wrote:Then everything is ok. Btw, the PixelData element value starts with zeros (0) ;-)
Oh, does this mean. If pixel data starts with 0, it wont display in visual studio debugger?
I, just ran a loop on pixelData16 and I can see pixel values. Thanks.
by abhishek_gupta
Wed, 2012-09-19, 12:30
Forum: DCMRT
Topic: Unable to read pixel data from RT Dose file.
Replies: 13
Views: 34153

Re: Unable to read pixel data from RT Dose file.

J. Riesmeier wrote:And what is the status code returned by the findAndGetUint16Array() call?
These are values from OFCondtion:
theCode: 0
theStatus: OF_ok
theText: Normal
by abhishek_gupta
Wed, 2012-09-19, 12:26
Forum: DCMRT
Topic: Unable to read pixel data from RT Dose file.
Replies: 13
Views: 34153

Re: Unable to read pixel data from RT Dose file.

J. Riesmeier wrote:You should check the return value of dcmDataDict.isDictionaryLoaded() as all DCMTK command line tools do.
Yes, data dictionary is getting loaded.
by abhishek_gupta
Wed, 2012-09-19, 12:11
Forum: DCMRT
Topic: Unable to read pixel data from RT Dose file.
Replies: 13
Views: 34153

Re: Unable to read pixel data from RT Dose file.

J. Riesmeier wrote:Are you sure that the data dictionary is loaded in your application? I'm asking because the dataset is stored with Little Endian Implicit VR ...
I think data dictionary is getting loaded because the same code is working for a CT image. But, I can recheck. Can you guide me, what needs to be checked?
by abhishek_gupta
Wed, 2012-09-19, 09:20
Forum: DCMRT
Topic: Unable to read pixel data from RT Dose file.
Replies: 13
Views: 34153

Unable to read pixel data from RT Dose file.

Dear Group members, I am unable to read pixel data from RT Dose dicom file. I am using DCMTK 3.6.0 Here's the code that, I am using: ********************************* DcmFileFormat dfile; dfile.loadFile("rtdose.dcm"); dfile.loadAllDataIntoMemory(); dset = dfile.getDataset(); DcmDataset *d ...