The 1541 used a proprietary bit-serial derivative of the standardized IEEE-488 parallel interface, which was used on Commodore's earlier drives for the PET / CBM range of personal / business computers.

** Commodore PET, Commodores first full-featured computer, a home / personal computer first produced in 1977

* Commodore PET / CBM range

* PET / CT

PET / CT-System with 16-slice CT ; the ceiling mounted device is an injection pump for CT contrast agent

A complete body PET / CT Fusion image

A Brain PET / MRI Fusion image

Because PET imaging is most useful in combination with anatomical imaging, such as CT, modern PET scanners are now available with integrated high-end multi-detector-row CT scanners ( so-called " PET / CT ").

At the Jülich Institute of Neurosciences and Biophysics, the world's largest PET / MRI device began operation in April 2009: a 9. 4-tesla magnetic resonance tomograph ( MRT ) combined with a positron emission tomograph ( PET ).

This radiotracer is used in essentially all scans for oncology and most scans in neurology, and thus makes up the large majority of all of the radiotracer (> 95 %) used in PET and PET / CT scanning.

2D / 3D reconstruction: Early PET scanners had only a single ring of detectors, hence the acquisition of data and subsequent reconstruction was restricted to a single transverse plane.

Also, FDOPA PET / CT, in centers which offer it, has proven to be a more sensitive alternative to finding, and also localizing pheochromocytoma than the MIBG scan.

Several radiotracers ( i. e. radioligands ) have been developed for PET that are ligands for specific neuroreceptor subtypes such as raclopride and fallypride for dopamine D2 / D3 receptors, McN 5652 and DASB for serotonin transporters, or enzyme substrates ( e. g. 6-FDOPA for the AADC enzyme ).

* January – The world's first personal all-in-one computer ( keyboard / screen / tape storage ), the Commodore PET, is demonstrated at the Consumer Electronics Show in Chicago

Average annual PET is often compared to average annual precipitation, P. The ratio of the two, P / PET, is the aridity index.

The result was the Commodore PET ( RAM, discrete logic graphics ), launched in 1977 – one of three historic home / personal computers to appear that year, the two others being the Apple II ( also 6502-based ) and the TRS-80 ( with a Zilog Z80 ).

The machine included the Zilog Z80 and various bus features needed to run the CP / M operating system, but placed them inside a " closed " box with a built-in keyboard similar to machines like the Commodore PET, the Commodore 64, and the Atari 8-bit family.

While CT of the lungs is usually adequate, a positron emission tomography ( PET ) scan of the body may also be performed to search for an occult tumour, particularly of the lung.

Neuroradiology methods are used in modern neurosurgical diagnosis and treatment, including computer assisted imaging computed tomography ( CT ), magnetic resonance imaging ( MRI ), positron emission tomography ( PET ), magnetoencephalography ( MEG ), and the stereotactic surgery.

A technique much like the reconstruction of computed tomography ( CT ) and single-photon emission computed tomography ( SPECT ) data is more commonly used, although the data set collected in PET is much poorer than CT, so reconstruction techniques are more difficult ( see Image reconstruction of PET ).

PET scans are increasingly read alongside CT or magnetic resonance imaging ( MRI ) scans, with the combination ( called " co-registration ") giving both anatomic and metabolic information ( i. e., what the structure is, and what it is doing biochemically ).

Because the two scans can be performed in immediate sequence during the same session, with the patient not changing position between the two types of scans, the two sets of images are more-precisely registered, so that areas of abnormality on the PET imaging can be more perfectly correlated with anatomy on the CT images.

A normal PET data set has millions of counts for the whole acquisition, while the CT can reach a few billion counts.

Schematic view of a detector block and ring of a PET scanner

The raw data collected by a PET scanner are a list of ' coincidence events ' representing near-simultaneous detection ( typically, within a window of 6 to 12 nanoseconds of each other ) of annihilation photons by a pair of detectors.

PET imaging is best performed using a dedicated PET scanner.

However, for institutions with low demand for PET, this may allow on-site imaging, instead of referring patients to another center, or relying on a visit by a mobile scanner.

* 1976 – First commercial PET scanner

A PET scanner detects these emissions " coincident " in time, which provides more radiation event localization information and, thus, higher resolution images than SPECT ( which has about 1 cm resolution ).

Capital acquired through the BC Provincial Health Services Authority Emerging Technologies Fund allowed purchase of the province ’ s first hybrid PET / CT scanner in 2004.

Edward Joseph Hoffman ( January 1, 1942 – July 1, 2004 ) helped invent the first human PET scanner, a commonly used whole-body scanning procedure for detecting diseases like cancer.

In 1972 he joined the faculty of Washington University ’ s School of Medicine, where he and Dr. Michael Phelps began developing what later became known as the PET scanner, used to detect cancer, heart disease and other serious illnesses.

Gamma camera PET is markedly inferior to PET imaging with a purpose designed PET scanner, as the scintillator crystal has poor sensitivity for the high-energy annihilation photons, and the detector area is significantly smaller.

However, given the low cost of a gamma camera and its additional flexibility compared to a dedicated PET scanner, this technique is useful where the expense and resource implications of a PET scanner cannot be justified.

Edward J. Hoffman and Michael Phelps developed the first human PET scanner in 1973.

* Edward J. Hoffman ( 1942 – 2004 ), professor and co-inventor of the PET scanner

Title: PET or positron scanner

Gallium-68 labelled somatostatin analogues such as < sup > 68 </ sup > Ga-DOTA-Octreotate ( DOTATATE ), performed on a PET / CT scanner is superior to conventional Octreoscan.

The result of Dr. Hikari's research was the PET ( PErsonal Terminal, pronounced P-E-T rather than the word " pet "), a small computer which is used similarly to a cellular phone or PDA and which contains a customizable artificial intelligence complete with emotions, known as a NetNavi ( short for Network Navigator ).

A proposal by law professor, David Smith, in an attempt to prove that neocortical death should legally be treated the same as brain death, involved PET scans to determine the similarities.

* Xuan Liu ; Comtat, C. ; Michel, C. ; Kinahan, P. ; Defrise, M. ; Townsend, D. ( 2001 ) " Comparison of 3-D reconstruction with 3D-OSEM and with FORE + OSEM for PET ", IEEE Transactions on Medical Imaging, 20 ( 8 ), 804 – 814