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