Refurbished Digirad Cardius X-ACT SPECT/CT System

QDI offers a refurbished Digirad (Digirad Corporation) Cardius X-ACT (also marketed as Cardius X-ACT+ / Cardius 3 X-ACT in regulatory filings) for sale as a dedicated cardiac nuclear medicine camera system. The Cardius X-ACT is a compact, cardiocentric SPECT/CT solution intended for rapid myocardial perfusion imaging with patient comfort in mind, and QDI provides hands-on service and support for this class of system.

System Overview

The Cardius X-ACT is a dedicated cardiac SPECT system from Digirad that combines triple-head solid-state digital detectors with an integrated low-dose volume CT (VCT) for co-registered attenuation-corrected imaging. Designed for upright, cardiocentric studies in a small footprint and without the requirement for lead-lined rooms, this Digirad (Digirad Corporation) Cardius X-ACT SPECT/CT refurbished offering is optimized for short scan times and high-count-rate cardiac protocols.

• Detector count: Triple-head (3 detectors).
• Detector technology: Solid-state high-definition detectors (Solidium® / Cardius-3 XPO digital detectors; pixelated CsI(Tl) with photodiode readout).
• Detector field-of-view (rectangular per head): 15.8 cm x 21.2 cm (6.2" x 8.3").
• Pixels per detector: 768; pixel size ~6.1 mm x 6.1 mm.
• Energy range / resolution: 50–170 keV; energy resolution < 10.5%.
• Count-rate capability: >3.5 million counts/sec (system max count rate listed).
• Orbit radius: 18.8 cm – 35.5 cm (7.4" – 14").
• Attenuation correction: Integrated low-dose Volume CT (VCT) / fluorescence x-ray attenuation correction (wide 27" VCT beam FOV described in OEM literature).
• CT / X-ray: Low-dose VCT transmission scan; scan time listed ~33–60 seconds; reported wide-beam VCT FOV ~27 inches.
• Patient handling / siting: Open upright design with saddle-like chair (upright imaging), patient weight limit ~227 kg (500 lbs).
• Room / power / size: Minimum room footprint ~8' x 9' (2.4 m x 2.7 m); system footprint ~96" x 29"; power 120 VAC, 20A dedicated line.
• Year introduced: 2008/2009.

Clinical Applications

The Cardius X-ACT is intended primarily for cardiac nuclear imaging workflows where a dedicated cardiac camera provides advantages in speed and patient throughput.

• Myocardial perfusion imaging / cardiac SPECT (MPI)
• Gated SPECT (cardiac function / MUGA)
• Stress-rest cardiac studies
• Potential for dynamic SPECT and dual-isotope cardiac protocols (noted as supported/future-capable)
• General cardiac nuclear imaging where a dedicated cardiac camera is appropriate

Why Buy Refurbished from QDI

• Practical value of refurbished equipment: refurbished systems deliver many of the same clinical capabilities as newer units while offering a pragmatic procurement path for hospitals and clinics that need dependable imaging without the lead time and complexity of purchasing new equipment.
• Inspection and testing by experienced engineers: every unit is examined and tested by engineers with decades of hands-on nuclear medicine field experience to verify core imaging performance and system integrity.
• Reduced downtime through practical support: our small, field-focused team emphasizes realistic, efficient service and troubleshooting to keep systems imaging and reduce operational interruptions.
• Straightforward, honest guidance: we help you evaluate configuration, siting, and clinical suitability for your practice with transparent, practical advice rather than marketing jargon.

Our Team's Expertise

QDI is a small, hands-on team with decades of real field experience servicing and supporting this class of equipment. We provide spect/ct system service and support grounded in onsite troubleshooting, component-level knowledge, and practical installations tailored to clinical workflows.

Please contact QDI to discuss configuration options, current availability, siting requirements, and a quote for this refurbished Digirad Cardius X-ACT system. We will work with you to determine the right setup and answer any technical questions.