LUCY ® 3-D Plus - Model 76-311

Radiation Therapy

LUCY ® 3-D Plus

Precision 3-D QA Phantom

Model 76-311

• Multi-tasking radiographic and

dosimetric QA phantom

specifically developed for radiation

therapy, radiology, and stereotactic

radiosurgery

• Verify imaging errors, compare

localization measurements of

different imaging modalities,

including CT, angiography, portal

imaging, and MRI

• Test image distortion and slice

thickness

• Verify target volume calculations

and CT / MRI fusion

• Verify accuracy of treatment

planning software algorithms

• For hardware verification, linear

accelerator gantry isocentricity,

table positioning, laser alignment,

and collimators

LUCY 3-D Plus sphere shown on standard alignment base

Introduction

LUCY 3-D Plus is a spherical, acrylic phantom precision-machined to simulate a patient’s

head. It contains known markers and spatial relationships which are detectable by CT,

angiography, and MRI imaging modalities, as well as various therapeutic equipment.

The LUCY 3-D Plus Phantom was developed to simulate clinical situations, verify

hardware and software components, and detect system errors.

Applications

LUCY supports all 3-D stereotactic radiotherapy and small field IMRT Systems, for

localization and treatment verification using major commercially available treatment

planning and delivery systems.

Use of the LUCY Phantom permits quantitative assessment and calibration of parameters

described in established quality assurance protocols and the commissioning of new

equipment and procedures, such as fusion and IMRT.

• Verify planned vs. delivered dose

distribution using radiochromic film,

ion chambers, MOSFETs, TLDS,

and gel

• Adapts to any stereotactic frame to

verify material or geometry effects

• A commissioning tool for hardware

and software

• A useful teaching aid

Detector in open LUCY sphere

Film cassette

Multiple detector cassettes

Specifications

The LUCY phantom sphere is constructed of acrylic, a standard radiation

calibration material recommended by the AAPM Task Group 21

All screws and plugs are made of white plastic material

A 360° rotation scale is located on the vertical support, around the

sphere axis for sagital or coronal mounting

The LUCY sphere is 140 mm in diameter

Upper Hemisphere Cavity: 81 x 81 x 35 mm, for insertion of an MRI

signal generator or other 3-D volumes, e.g. stacked film or gel

container

Lower Hemisphere: has four cylindrical chambers 10 mm Ø x 25 mm

deep, for placement of radiological markers

A second cavity of 85 x 85 x 10 mm is located at the center of the

sphere, for placement of accessories and cassettes. An accessory port

of 8 mm in diameter allows for insertion of dosimetry sensors to the

center of the sphere, in the transverse mount

Weight: 11.8 lb (5.3 kg)

Available model(s)

Model

Description

76-311

LUCY 3-D Plus Precision 3-D QA Phantom,

includes one phantom sphere and one tool kit set

Alignment bases, including MRI and stereotactic frame

interfaces

Model

Description

76-311-4000

Standard Base and Clamp

76-311-4002

Stereoadapter ® Frame Supports

76-311-4003

Load-Bearing Stereoadapter Base

76-311-4004

Brainlab Frame Interface

76-311-4005

Optional Brainlab Mask System Adapters

LUCY interfaced with stereotactic systems

76-311-4006

Leksell/Gamma Knife Interface

76-311-4007

Leibinger Frame Interface

76-311-4008

Radionics BRW Frame Interface

76-311-4009

Optional Radionics GTC Frame Adapters

76-311-4010

Optional Radionics MRI Frame Adapters

All OEM company trademarks are implied.

Radiological accessories

LUCY/Brainlab Interface

LUCY/Brainlab Interface Mask

System

Model Description

76-311-3006 CT Marker Cylinders, set of four

76-311-3007 Angiography Marker Cylinders, set of four

76-311-3008 MRI Marker Cylinders, set of four

76-311-3009 CT/Angio Grid Plate

76-311-3011 CT 3-Volume Chamber

76-311-3012 MRI 3-Volume Chamber

76-311-3013 Target/Treatment Verification Chamber

76-311-3021 3-D Volume Chamber with lid (supplied empty)

76-311-3022 MRI Signal Generator

Radiotherapy / dosimetry accessories

LUCY/Leksell Interface

LUCY/Leibinger Interface

Model Description

76-311-3013 Target/Treatment Verification Chamber

76-311-3014 Radiation/Optics Alignment Pointer

76-311-3030 PTW Cassette for Pin Point 0.015cm 3 (Model TN31006)

76-311-3031 IBA-Scanditronix Cassette for Chamber (Model DEB050)

76-311-3032 Exradin Cassette for chamber (Model IC-A1SL-1)

76-311-3033 IBA-Wellhofer Cassette for chamber (Model CC01) (10 mm)

76-311-3040 Radiochromic Stacked Film Assembly (85x85x10 mm)

4x2.25 mm Dividers suitable for 3x3 inch film

76-311-3041 Radiochromic Stacked Film Assembly (85x85x10 mm)

4x2.25 mm Dividers suitable for 2.5x2.5 inch film

76-311-3042 Radiochromic Stacked Film Assembly (81x81x35 mm)

14x2.25 mm Dividers suitable for 2.5x2.5 inch film

76-311-3045 MOSFET Array Cassette suitable for TLD’s

76-311-3051 B-4 Cassette for Polymer Gel Container (81x81x35 mm)

76-311-3052 B-4 Polymer Gel Container - disposable

LUCY/Radionics BRW Interface LUCY/Sandstrom Interface

References

1. R. Ramani, M.G.Ketko, P.F. O’Brien, M.L. Schwartz, “A QA Phantom for Dynamic

Stereotactic Radiosurgery: Quantitative Measurements,” Medical Physics , 22 (8),

(1995) 1343-1346.

2. R. Ramani, A.W. Lightstone, D.L.D. Mason, P.F. O’Brien, “The Use of Radiochronmic

Film in Treatment Verification of Dynamic Stereotactic Radiosurgery,” Medical Physics ,

21 (3), (1994) 389-392.

76-311-4001

GE MRI Head Coil Base