APEX /IntegUSBAPEX /IntegUSB
Digital Front End Acquisition Interface andNuclear Medicine Processing Software
for APEX Gamma Cameras
BenefitsBenefits
Interfaces directly with Detector Signals (analog summer)
More Stable– Analog Signal path is reduced to a minimum, no signal drifts.
Less Power // Less Heat // Less Noise– Replaces all Analog Front End boards and Digital Correction
& Processor Hardware, Less power consumption, No fans required.
Smaller Footprint– Bulky Consoles can be removed.
Better Specs– Final Camera Specs are usually better than the original
(analog front end) camera.
IntegUSB DSP Based Front EndIntegUSB DSP Based Front End
Valid Event Detection
Real Time High Speed Integration of all six channels
Pulse Pile-Up detection and correction.
Pre Window Energy Discrimination
Position Normalization
Event Buffering
IntegUSB DescriptionIntegUSB Description
Six Analog Input Channels.
Six High Speed / High Resolution ADCs.
Last generation DSP.
High Count Rate (>500Kcps) , Low Dead Time (1 µs Typ.)
USB 2.0 (480 Mbps) interface to IM512P Acquisition Software.
Analog ECG Interface for standard ECG Monitor / Gate– Digital input for “R” wave synchronization.– Analog input for ECG waveform display.
Digital ECG Interface (For FiberOptic Isolated ECG-RMT)
Modifications to original Apex CameraModifications to original Apex Camera
Original APEX Gantry and Detector remain unmodified. We remove ALL Consoles, Monitors and Keyboard. We remove ALL Boards inside de Floor Cabinet. We add a last generation DSP based Front End and a DAC
board to control PMTs and HV. We use existing HV and LV power supplies. We add a new opto-isolated ECG gating module. We add a last generation PC that hosts the IM512P Acquisition
and Processing Software linked by a high speed USB2.0 interface.
We provide a New Linearity Dot Mask, for Linearity Map acquisition.
All Image Corrections are done in real time by our software.
ALL THESE (13) BOARDS ARE REMOVEDALL THESE (13) BOARDS ARE REMOVED
Block Diagram – IntegUSB+IntDAC –> Block Diagram – IntegUSB+IntDAC –> APEXAPEX
IntegUSBA/D
Valid Event DetectionPulse Pile-Up Corrector
IntegratorPosition Normalization
Buffering
Digital & AnalogECG Interface
X+
X-
Y+
Y-
E
APEXGamma Camera Detector
37, 59, 61 & 95
PMTsHeads
OpticalTransceiver
Enorm
IntDAC(mounted on top of IntegUSB)
DACs to control PMT Gain and HV
Auxiliary Gantry Control
PMT Gain Control HVPower Supply
HV Control
USB 2.0 (480Mbps)
PCwith IM512PAcquisition &
ProcessingSoftware
(On the fly Energy, Linearity,
Uniformity and C.O.R.
Corrections)
DigitalECG Module(battery powered)
Versatile Link Optical Connection Patient
Leads
Digital ECG Input
Gantry
Gantry ControlEthernet Link
to Optional IM512PProcessing Workstations and/or
DICOM Devices
IntegUSB Board View (Size: 4.2” x 4.9”)IntegUSB Board View (Size: 4.2” x 4.9”)
IntDAC IntDAC (Digital to Analog Converter for PMT Gain Control)(Digital to Analog Converter for PMT Gain Control)
IntegUSB and IntDAC Mounted Inside APEX IntegUSB and IntDAC Mounted Inside APEX CabinetCabinet
USB 2.0 to PC
+5, +12 Power
PMT Gain Control
HV P.S. Control
Analog Input SignalsE,X+,Y+,X-,Y-,Enorm
Digital Opto-Isolated ECG ModuleDigital Opto-Isolated ECG Module
Optical Fiber to Optical
Transceiver
Patient Leads
ECG Optical Transceiver ECG Optical Transceiver
OpticalTransceiver
(installed in Gantry Base)
Digital ECG Output to
IntegUSB
Optical FiberInput from
ECG Module
Linearity CorrectionLinearity Correction
Uncorrected Linearity Mask Acquisition Lin. Mask with Linearity Correction Applied
SP6 HR
Energy, Linearity & Uniformity CorrectionEnergy, Linearity & Uniformity Correction
Raw Unformity Flood (all corrections OFF) Flood with Energy, Linearity & Uniformity ON
SP6 HR
Integral Uniformity : 1.8%Differential Uniformity : 1.2%
99mTc30M cts.
99mTc100M cts.
Sample Heart Studies
IM512P
Image Processing Software
GSPECT summed slices, 3 axes, stress (S) and rest GSPECT summed slices, 3 axes, stress (S) and rest (R). (R).
Endo-epicardial contours upon the beating slices. Endo-epicardial contours upon the beating slices. S & R.S & R.
Wall thickness, seen from the inner side of LV, S Wall thickness, seen from the inner side of LV, S and R.and R.
Ejection fraction. End diastole and end systole Ejection fraction. End diastole and end systole images. S.images. S.
Perfusion mapped on LV surface (summed), Perfusion mapped on LV surface (summed), S. S.
Thanks!
www.alfanuclear.com