A working group from the Rotary Club of Dubbo West is seeking community support to secure the equipment, which is used in the diagnosis of medical conditions including cancer and epilepsy.

Parkes MP Mark Coulton and Deputy Premier and Dubbo MP Troy Grant met with the group and members of Dubbo's medical fraternity last month, and Mr Coulton said they had a convincing argument.

"They were saying that it would be a good opportunity to have a scanner in the new Dubbo Hospital," Mr Coulton said.

"They believe this would be a wonderful tool to help with the diagnoses of a lot of the chronic issues... the advantages of making earlier diagnoses on a whole range of issues."

Patients in the state's west currently have to travel to Sydney for a PET-CT scan, according to Rotarian Lyn Smith.

"The machine would give country people more equitable access to up-to-date technology and help address the disparity in health outcomes between lower and higher socio-economic status groups," Ms Smithsaid l last month.

"It would also help to address inequities in Aboriginal health."

Rural Doctor's Association of Australia president Dr Ewen McPhee said the machine could be critical in making sure regional people have access to higher quality care.

Mr Coulton has organised a meeting with federal health minister Sussan Ley to discuss the possibility, while Mr Grant said the decision would ultimately sit with the Western NSW local health district (LHD).

"This is the first time the potential to have diagnostic equipment has been raised with me," Mr Grant said.

"If this is a priority of theirs [the LHD] they'll advise me and the government through the health minister and we'll obviously look at our capacity to acquire and include it in the build of the hospital.

"As the local member I'll advocate for every bit of equipment and investment that my community needs. Their arguments made a lot of sense but we'll leave it to the experts at the health district to consider at an administrative and board level."