GE LightSpeed VCT (base)

Family: LightSpeed · Modality: CT
Variant siblings: VCT XT · VCT Select

The original 2004 LightSpeed VCT configuration. First 64-slice scanner widely deployed across US hospitals and the platform that established GE's 64-slice market position for the remainder of the decade. Entry tier in today's VCT market: pre-V-Res detector, 0.5 s minimum rotation, no ASiR, no Volume Shuttle, no cardiac gating license by default.

Original 2004 configuration

64 slices — a major generational step in 2004, when 16-slice scanners were still the clinical standard.
70 cm gantry aperture — wide-bore by mid-2000s standards; Siemens Sensation 16 / 64 and Philips Brilliance 64 of the era ran narrower apertures.
Performix Pro VCT 100 tube — the tube that would define the entire VCT family and remain the dominant wear item through XT years.
Pre-V-Res detector — original VDAS generation, coarser Z-axis than the later V-Res 40 mm detector on VCT XT.
Host software 4.x — many base units ran their full life on 4.x; some late-production base units shipped with 5.x early builds.

What base does not include

No ASiR — filtered back-projection reconstruction only. Dose reduction relies on operator technique, not iterative reconstruction.
No Volume Shuttle — perfusion protocols that depend on 40 mm Z-axis + bidirectional table motion are not supported.
No SnapShot Pulse by default — cardiac gating was rare on base units.
Slower rotation — 0.5 s minimum.

Specs

64 slices · 70 cm gantry aperture
Pre-V-Res detector
Performix Pro VCT 100 tube · 8.0 MHU heat capacity
100 kW high-frequency generator
0.5 s minimum rotation
Host software 4.x (primary), occasional 5.x late-production

Clinical positioning

Entry-tier refurb — community hospital and outpatient imaging where 64-slice chest / abdomen-pelvis / neuro throughput is sufficient and cardiac / advanced dose-reduction are not required.
International markets where the Performix Pro parts network and service knowledge are mature.
Replacement for 4- / 8- / 16-slice predecessors without stepping to Revolution-generation capital.

Relationship to siblings

vs VCT Select — Select adds optional ASiR / SnapShot Pulse licensing and slightly faster rotation.
vs VCT XT — XT adds V-Res 40 mm detector, Volume Shuttle, licensed ASiR, and the full cardiac configuration.
Buying base and "upgrading" to XT after the fact is almost never cheaper than purchasing an XT configured correctly at the outset — the XT tier is a matched-component bundle, not a bolt-on.

Parts

Field guide

See shared VCT-family guide at field-guide/ge-healthcare-lightspeed-vct.