Molecular Imaging

Molecular imaging (also called nuclear medicine or nuclear imaging) can image the function of cells inside the body at the molecular level. This includes the imaging modalities of positron emission computed tomography (PET) and single photon emission computed tomography (SPECT) imaging. How does PET and SPECT imaging work? Small amounts of radioactive material (radiopharmaceuticals) injected into a patient. These can use sugars or chemical traits to bond to specific cells. The radioactive material is taken up by cells that consume the sugars. The radiation emitted from inside the body is detected by photon detectors outside the body. Computers take the data to assemble images of the radiation emissions. Nuclear images may appear fuzzy or ghostly rather than the sharper resolution from MRI and CT.  But, it provides metabolic information at a cellular level, showing if there are defects in the function of the heart, areas of very high metabolic activity associated with cancer cells, or areas of inflammation, data not available from other modalities. These noninvasive imaging exams are used to diagnose cancer, heart disease, Alzheimer’s and Parkinson’s disease, bone disorders and other disorders. 

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Siemens debuts new, cleared SPECT/CT model

Siemens Healthineers splashed an FDA-approved SPECT/CT system June 12 at the 2022 annual meeting of the Society of Nuclear Medicine & Nuclear Imaging in Vancouver, B.C.

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3 indications auguring well for the future of pediatric PET/MRI

In pediatric care settings, hybrid PET/MR imaging combines “exquisite soft-tissue information obtained by MR imaging with functional information provided by PET.”

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FDA clears spinal-tap test that could challenge PET in Alzheimer’s diagnostics

The FDA has approved a lab test for evaluating cognitively impaired adults who may be in the early stages of Alzheimer’s disease.

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Imaging advocate applauds CMS’ decision to lift longstanding PET payment restriction

The Centers for Medicare & Medicaid Services is removing restrictions for using positron emission tomography scans outside of cancer care. 

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Imaging advocates, bipartisan lawmakers unite to oppose ‘misguided and massive’ Medicare pay cuts

Congressmen highlighted a planned wage increase for clinical labor that will spell 20% reductions elsewhere, due to budget neutrality. 

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Imaging advocates offer guidance after reported spate of SPECT/CT payment denials

The Society of Nuclear Medicine & Molecular Imaging said it’s received “many complaints” from the field pertaining to various commercial payers. 

‘Partial victory’: Imaging advocates say Humana relenting on some PET/CT payment restrictions

The health insurer reversed its coverage denial for imaging of gastric and esophageal oncologic indications, while other restrictions remain in place. 

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Humana agrees to take second look at panned payment change labeling PET/CT as ‘investigational’

The American Society of Nuclear Cardiology recently met with the Louisville, Kentucky, insurer, which shared an openness to reviewing a recent coverage determination. 

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Around the web

Cardiovascular Business
Global shortage of nuclear imaging isotopes may be over

The nuclear imaging isotope shortage of molybdenum-99 may be over now that the sidelined reactor is restarting. ASNC's president says PET and new SPECT technologies helped cardiac imaging labs better weather the storm.

Cardiovascular Business
‘A huge win’: CMS significantly increases Medicare payments for cardiac CT

CMS has more than doubled the CCTA payment rate from $175 to $357.13. The move, expected to have a significant impact on the utilization of cardiac CT, received immediate praise from imaging specialists.

Cardiovascular Business
GE HealthCare moves PET/CT scanner production to United States

The all-in-one Omni Legend PET/CT scanner is now being manufactured in a new production facility in Waukesha, Wisconsin.

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