Converging technologies in the areas of telecommunications, volume vis
ualization, and computer hardware and peripherals have made possible i
n recent years the development of new tools for collaboration that ext
end the reach of health care professionals and other consumers of volu
metric data around the world. We describe a recent development at the
Center for Research in Computer Graphics in Providence, RI, that makes
a significant contribution to this area. TeleInViVo(TM) is an applica
tion that supports collaborative volumetric data visualization and exp
loration. It is an extension and partial reworking of InViVo(TM) a vol
ume visualization application developed at the Fraunhofer IGD, in Darm
stadt, Germany. InViVo, which is largely focused around the medical co
mmunity and with an emphasis on diagnostic ultrasound, has been augmen
ted with new modes of interaction, an intuitive collaboration mechanis
m, and an architectural modification to support future developments in
this area. Copyright (C) 1996 Elsevier Science Ltd.