K Number
K051549
Device Name
CARDIUS-1, CARDIUS-2, CARDIUS-3, 2020TC SPECT IMAGING SYSTEM
Manufacturer
Date Cleared
2005-07-13

(30 days)

Product Code
Regulation Number
892.1200
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
Cardius-1, Cardius-2, Cardius-3: The Cardius product models are intended for use in the generation of cardiac studies, including planar and Single Photon Emission Computed Tomography (SPECT) studies, in nuclear medicine applications. 2020tc SPE.CT Imaging System: The Digirad 2020tc SPECT Imaging system is intended for use in the generation of both planar and Single Photon Emission Computed Tomography (SPECT) clinical images in nuc ear medicine applications. The Digirad SPECT Rotating Chair is used in conjunction with the Digirad 2020tc Imager™ to obtain SPECT images in patients who are seated in an upright position. Specifically, the 2020te Imager™ is intended to image the distribution of radionuclides in the body by means of a photon radiation detector. In so doing, the system produces images depicting the anatomical distribution of radioisotopes within the human body for interpretation by authorized medical personnel.
Device Description
The changes to the Cardius and 2020tc cameras involve modifications to the data acquisition software used on the gamma cameras. The primary change to the data acquisition software involves the addition of a Camera Center-of-Rotation (COR) quantitative check. Additional minor changes were made to the User Interface screen. There were no hardware changes to the cameras.
More Information

Not Found

No
The document explicitly states "Mentions AI, DNN, or ML: Not Found" and the description of the changes focuses on data acquisition software modifications, specifically a "Camera Center-of-Rotation (COR) quantitative check," with no mention of AI/ML techniques.

No
The device is described as an "Imaging System" intended for "generation of cardiac studies" and "produces images depicting the anatomical distribution of radioisotopes." This indicates a diagnostic purpose rather than a therapeutic one.

Yes

The device is intended to produce images depicting the anatomical distribution of radioisotopes in the human body for interpretation by authorized medical personnel, which is a key function in diagnostic procedures, even if it does not explicitly state "diagnosis".

No

The device described is a modification to the data acquisition software of existing gamma cameras (Cardius and 2020tc). While the changes are software-only, the device itself is the imaging system, which includes hardware (gamma cameras). The software is a component of a larger hardware system.

Based on the provided information, this device is not an IVD (In Vitro Diagnostic).

Here's why:

  • Intended Use: The intended use clearly states that the devices are for generating cardiac studies and clinical images in nuclear medicine applications by imaging the distribution of radionuclides in the body. This involves imaging the patient directly, not analyzing samples taken from the body.
  • Device Description: The description focuses on modifications to the data acquisition software for gamma cameras, which are used for in-vivo imaging.
  • Lack of IVD Characteristics: There is no mention of analyzing biological samples (blood, urine, tissue, etc.), reagents, or any other components typically associated with in vitro diagnostics.

IVD devices are designed to examine specimens derived from the human body to provide information for diagnostic purposes. This device operates by detecting radiation emitted from within the patient's body, which is an in-vivo process.

N/A

Intended Use / Indications for Use

The Cardius product models are intended for use in the generation of cardiac studies, including planar and Single Photon Emission Computed Tomography (SPECT) studies, in nuclear medicine applications.

The Digirad 2020tc SPECT Imaging system is intended for use in the generation of both planar and Single Photon Emission Computed Tomography (SPECT) clinical images in nuc ear medicine applications. The Digirad SPECT Rotating Chair is used in conjunction with the Digirad 2020tc Imager™ to obtain SPECT images in patients who are seated in an upright position.

Specifically, the 2020te Imager™ is intended to image the distribution of radionuclides in the body by means of a photon radiation detector. In so doing, the system produces images depicting the anatomical distribution of radioisotopes within the human body for interpretation by authorized medical personnel.

Product codes (comma separated list FDA assigned to the subject device)

KPS

Device Description

The changes to the Cardius and 2020tc cameras involve modifications to the data acquisition software used on the gamma cameras. The primary change to the data acquisition software involves the addition of a Camera Center-of-Rotation (COR) quantitative check. Additional minor changes were made to the User Interface screen. There were no hardware changes to the cameras.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Single Photon Emission Computed Tomography (SPECT), Planar Imaging

Anatomical Site

cardiac, human body (general)

Indicated Patient Age Range

Not Found

Intended User / Care Setting

authorized medical personnel, nuclear medicine applications

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Testing included comprehensive software verification and validation studies in addition to clinical imaging with modified and unmodified software. All software test results met pre-defined acceptance criteria. The quality of the clinical images produced with the modified software was similar to the quality of the images produced with the unmodified software.

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Testing was performed with the Cardius and 2020tc cameras to demonstrate that the design outputs met the design inputs of the proposed acquisition software changes. Testing included comprehensive software verification and validation studies in addition to clinical imaging with modified and unmodified software. All software test results met pre-defined acceptance criteria. The quality of the clinical images produced with the modified software was similar to the quality of the images produced with the unmodified software.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

K982855, K030085

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 892.1200 Emission computed tomography system.

(a)
Identification. An emission computed tomography system is a device intended to detect the location and distribution of gamma ray- and positron-emitting radionuclides in the body and produce cross-sectional images through computer reconstruction of the data. This generic type of device may include signal analysis and display equipment, patient and equipment supports, radionuclide anatomical markers, component parts, and accessories.(b)
Classification. Class II.

0

Appendix 1: 510(k) Summary

Image /page/0/Picture/1 description: The image shows the word "K051549" in a handwritten style at the top. Below that is the logo for DIGIRAD, with the tagline "Leaders in Solid-State Imaging." The DIGIRAD logo includes a geometric design on the left side.

A. Sponsor

Digirad Corporation 13950 Stowe Drive Poway, California 92064 Contact Person: Joel Tuckey Tel: (858) 726-1527 Fax: (858) 726-1700

JUL 1 3 2005

Date Prepared: June 8, 2005 B.

C. Device Name

Trade Name: Cardius-1, Cardius-2, Cardius-3, 2020tc SPECT Imaging System Classification Name: System, Emission Tomography

D. Description of Changes

The changes to the Cardius and 2020tc cameras involve modifications to the data acquisition software used on the gamma cameras. The primary change to the data acquisition software involves the addition of a Camera Center-of-Rotation (COR) quantitative check. Additional minor changes were made to the User Interface screen. There were no hardware changes to the cameras.

ui Intended Use

The intended uses of the Cardius and 2020tc cameras have not changed. They are intended for use in the generation of cardiac studies, including planar and Single Photon Emission Computed Tomography (SPECT) studies, in nuclear medicine applications.

F. Cleared/Predicate Device

The proposed device bundle is substantially equivalent to the following cleared/predicate devices:

2020tc SPECT Imaging System and the SPECTtour Chair (SPECT Imaging System), (1) cleared on November 9, 1998 under 510(k) #K982855; and

Cardius-1 and Cardius-2 SPECT Imaging System, cleared on February 5, 2003 under (2) 510(k) #K030085.

G. Conclusions Drawn from Testing

Testing was performed with the Cardius and 2020tc cameras to demonstrate that the design outputs met the design inputs of the proposed acquisition software changes. Testing included comprehensive software verification and validation studies in addition to clinical imaging with modified and unmodified software. All software test results met pre-defined acceptance criteria. The quality of the clinical images produced with the modified software was similar to the quality of the images produced with the unmodified software.

13950 Stowe Drive t 858.726.1600 Poway, CA 92064-8803

f 858.726.1700 www.digirad.com

1

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

JUL 1 3 2005

Mr. Joel Tuckey Vice President Quality Digirad Corporation 13950 Stowe Drive POWAY CA 92064-8803 Re: K051549

Trade/Device Name: Cardius-1, Cardius-2, Cardius-3, 2020tc SPECT Imaging System Regulation Number: 21 CFR 892.1200 Regulation Name: Emission computed tomography system Regulatory Class: II Product Code: KPS

Dated: June 8, 2005 Received: June 13, 2005

Dear Mr. Tuckey:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.

If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

2

This letter will allow you to begin marketing your device as described in your Section 510(k) I ms letter will anow you to ough tinding of substantial equivalence of your device to a legally prematics notification: "The station for your device and thus, permits your device to proceed to the market.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please If you dosire sportio as no of the following numbers, based on the regulation number at the top of this letter:

21 CFR 876.xxxx(Gastroenterology/Renal/Urology)240-276-0115
21 CFR 884.xxxx(Obstetrics/Gynecology)240-276-0115
21 CFR 892.xxxx(Radiology)240-276-0120
Other240-276-0100

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Atoo, promother general information on your responsibilities under the Act from the 001:577: " Connell Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address

http://www.fda.gov/cdrh/industry/support/index.html

Sincerely yours,

Nancy C. Hogdon

Nancy C. Brogdon Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

3

Indications for Use 510(k) Number (if known): K051549 Device Name: Cardius-1, Cardius-2, Cardius-3, 2020tc SPECT Imaging System

Indications for Use:

Cardius-1, Cardius-2, Cardius-3:

The Cardius product models are intended for use in the generation of cardiac studies, including planar and Single Photon Emission Computed Tomography (SPECT) studies, in nuclear medicine applications.

2020tc SPE.CT Imaging System:

The Digirad 2020tc SPECT Imaging system is intended for use in the generation of both planar and Single Photon Emission Computed Tomography (SPECT) clinical images in nuc ear medicine applications. The Digirad SPECT Rotating Chair is used in conjunction with the Digirad 2020tc Imager™ to obtain SPECT images in patients who are seated in an upright position.

Specifically, the 2020te Imager™ is intended to image the distribution of radionuclides in the body by means of a photon radiation detector. In so doing, the system produces images depicting the anatomical distribution of radioisotopes within the human body for interpretation by authorized medical personnel.

Prescription Use (Part 21 CFR 801 Subpart D) AND/OR Civer-The-Counter Use (21 CFR 801 Subpart C)

(PLEASE DO) NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)

Nancy C bradon

Sign-Off)
Division of Reproductive, Abdominal, and
Radiological Devices
$104her K051549

Pagc 1 of 1