Grapefruit USA Inc (GPFT)

[goldcoastoh]

chevyman,

i have not heard the cc, and haven't heard the context or the way it was worded...but read something on that in the post by stock777...

i don't know if he means "placement of images onto a website." i believe i have heard this discussed in the past... i will say i absolutely applaud the fact that he isn't monkeying around with doing that while the 510K review is going on...

regardless stock777's summary post stated the word "compression," which it is merely a transmission thing and not an acquisition thing... THINK OF IT AS A ZIP FILE ON YOUR COMPUTER...

at any rate, this is per a standard by the american college of radiology...I RECOMMEND LINKING INTO THE PAGE PER LINK BELOW...

ACR TECHNICAL STANDARD FOR ELECTRONIC PRACTICE OF MEDICAL IMAGING

I. INTRODUCTION

Increasingly, medical imaging and patient information are being managed utilizing digital data during acquisition, transmission, storage, display, interpretation, and consultation. The management of these data during each of these operations may have an impact on the quality of patient care.

These standards are applicable to any system of digital image data management, from a single-modality or single-use system to a complete picture archiving and communication system (PACS) to the electronic transmission of radiologic images from one location to another for the purposes of interpretation and/or consultation.

This standard defines goals, qualifications of personnel, equipment guidelines, specifications of data manipulation and management, and quality control and quality improvement procedures for the use of digital image data that should result in high-quality radiological care.

In all cases for which an American College of Radiology (ACR) Practice Guideline or Technical Standard exists for the modality being used or the specific examination being performed, that guideline or standard will continue ACR TECHNICAL STANDARD to apply when digital image data management systems are used. A glossary of commonly used terminology (Appendix A) and a reference list are included.

allow me to skip to this...

B. Compression

Data compression may be performed to facilitate transmission and storage. The type of medical image, the modality, and the objective of the study will determine the degree of acceptable compression. Several methods, including both reversible and irreversible techniques (lossless and lossy are also common terms), may be used under the direction of a qualified physician or practitioner, with minimal if any reduction in clinical diagnostic image quality. If compression is used, algorithms recommended by the DICOM standard such as wavelet or JPEG-2000 compression methods should be used. The types and ratios of compression used for different imaging studies transmitted and stored by the system should be selected and periodically reviewed by the responsible physician to ensure appropriate clinical image quality. Regulatory bodies may require the compression ratio used to be indicated on the compressed image. The Food and Drug Administration (FDA) does not allow compression of digital mammograms at this time for retention, transmission, or final interpretation.

http://www.acr.org/SecondaryMainMenuCategories/quality_safety/guidelines/med_phys/electronic_practice.aspx

per the glossary:

Compression ratio - the ratio of the number of bits in an original image to that in a compressed version of that image. For example, a compression ratio of 2:1 would correspond to a compressed image with one-half the number of bits of the original.