Q&A: The Modern Picture Gallery

Q. When doctors order X-rays, CT scans, PET scans, M.R.I.’s, ultrasounds and mammograms these days, how are the images stored and transmitted?
A. All kinds of images can now be captured, reviewed, stored and transmitted digitally, using a standard format called Dicom, for digital imaging and communications in medicine, said Dr. Keith D. Hentel, executive vice chairman of the department of radiology at NewYork-Presbyterian Hospital/Weill Cornell Medical Center.
Dicom files contain not only the images but also information about the patient and how the images were acquired, along with the radiologist’s annotations, Dr. Hentel said.
The viewer can manipulate Dicom data in ways as simple as making standard measurements or as complex as producing detailed three-dimensional representations of the anatomy.
The images may be printed on film or even on paper, Dr. Hentel said, but most are interpreted by radiologists electronically and stored on systems called PACS, for picture archiving and communication systems. For those without access to such systems, the Dicom files can be put on a CD-ROM along with a viewing program.
Patients can increasingly expect to have their images securely archived and easily accessible on Web-based or cloud-based services, Dr. Hentel said, making them available wherever and whenever needed.

0 yorum: