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510(k) Data Aggregation

    K Number
    K183448
    Device Name
    NewTom 5G XL
    Manufacturer
    Date Cleared
    2019-03-08

    (86 days)

    Product Code
    Regulation Number
    892.1750
    Reference & Predicate Devices
    Why did this record match?
    Device Name :

    NewTom 5G XL

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The NewTom 5G XL is cone beam computed tomography x-ray imaging system that acquires sequences of images of the head, including ear, nose and throat (ENT), of dento-maxillofacial complex, teeth, mandible and jaw, temporo-mandbular joint (TMI), other areas of the human skull and neck with sections of upper cervical spine and lower extremities for use in diagnostic support.

    Device Description

    The NewTom 5G XL is a volumetric Cone Beam Computed Tomography (CBCT) system intended for diagnostic use. It obtains geometrical and x-ray information through digital 2D and 3D images of the objects in the area being examined.

    The NewTom 5G XL is able to analyze the regions of the head, including the dental and maxillofacial and the otorhinolaryngology areas, the cervical spinal column and upper and lower limbs.

    Particularly, the NewTom 5G XL can be used in the following fields:

    • maxillofacial surgery, orthodontics, implants, endodontics, otorhinolaryngology, prosthetics, and orthopedics.
      The NewTom 5G XL CBCT device acquires a sequence of x-ray images by performing a rotation around the patient's head then, starting from these images, reconstructs a 3D matrix of the examined volume and produces 2D views of it.

    From these views it is possible to reconstruct other 2D images on which 3D images, angle and distance measurements can be taken. Each image can be printed and/or stored in a magnetic/optical media (CD, hard disk, network, USB pen or other mass storage device).

    NewTom 5G XL consists of three main components: the scanner unit, the motorized patient support and the main workstation (secondary workstations could be also available as optional) that supports the dedicated software, enabling data acquisition.

    The software requires a Microsoft Windows OS (version 7 or later).

    AI/ML Overview

    I am sorry, but the provided text does not contain the detailed information needed to construct the complete table of acceptance criteria and reported device performance, nor does it provide a full study description as requested.

    The document discusses the substantial equivalence of the NewTom 5G XL device to predicate devices (NewTom 5G and NewTom VGi Evo) based on safety, non-clinical performance, and clinical performance tests. However, it does not explicitly state acceptance criteria as specific numerical thresholds that the device was required to meet for each performance metric. It generally states that the device's performance is "comparable" or "able to fulfill the main standard reference."

    Here's a breakdown of what can be extracted and what is missing:

    1. A table of acceptance criteria and the reported device performance:

    MetricAcceptance Criteria (Not explicitly stated as numerical thresholds in the document)Reported Device Performance (Comparative statements)
    SNR (Signal-to-Noise Ratio)Comparable to predicate device NewTom 5G (K142222) and reference device NewTom VGi Evo (K151612)NewTom 5G XL has SNR comparable to the values given by the predicate device NewTom 5G (K142222) and by the reference device NewTom VGi Evo (K151612).
    Spatial ResolutionComparable to predicate device NewTom 5G (K142222) and reference device NewTom VGi Evo (K151612)NewTom 5G XL has spatial resolution comparable to the values given by the predicate device NewTom 5G (K142222) and by the reference device NewTom VGi Evo (K151612).
    MTF (Modulation Transfer Function)Comparable to predicate device NewTom 5G (K142222)NewTom 5G XL has modulation transfer function (MTF) comparable to the values obtained using the predicate device NewTom 5G (K142222). Additionally, specific MTF values are listed in the comparison table: MTF50 > 6, MTF10 > 12.
    NPS (Noise Power Spectrum)Comparable to predicate device NewTom 5G (K142222)NewTom 5G XL has noise power spectrum (NPS) comparable to the values obtained using the predicate device NewTom 5G (K142222).
    CTDIw (Weighted Computed Tomography Dose Index)Comparable to predicate device NewTom 5G (K142222) for similar FOVs, or lowerThe CTDIw dose value given by NewTom 5G XL are comparable to the values obtained using the predicate device NewTom 5G (K142222). Generally speaking, considering similar FOVs, the CTDIw value measured with the NewTom 5GXL is lower than the CDTIw value measured with the NewTom 5G.
    Image Quality (DIN 6868-161)"Quality level" evaluated according to German standard DIN6868-161Test report according to standard DIN 6868-161 has been performed to evaluate the quality level of images obtained using the device NewTom 5G XL, according to the German standard DIN6868-161. (Implicitly, the results met the standard's requirements for image quality).
    Image Quality (NEMA XR 29-2013 / MITA Smart Dose)Diagnostic quality images while optimizing radiation useTest report according to standard NEMA XR 29-2013 (MITA Smart Dose) has been performed to evaluate that patient undergoing CT exams by means of the proposed device NewTom 5G XL, are subjected to procedures that produces images having diagnostic quality expected while optimizing the use of ionizing radiation. (Implicitly, the device produces such images).
    Image Quality (IEC 61223-3-5)Performance parameters (image quality, patient dose, positioning) evaluated and metWith this performance test, the essential parameters which describe the performance of the CT scanners with regard to image quality, patient dose and positioning have been evaluated. (Implicitly, the device met the requirements of this standard).
    Clinical Image Resolution and QualityDiagnostic reliability and utility based on clinical experienceOn the subject device have been performed clinical evaluation in order to judge the images resolution and quality during CBCT acquisition. The quality evaluation has been done considering different anatomical sites and different patient population. Based on clinical experience, the test results can show the diagnostic reliability and utility of the radiographic images produced by the NewTom 5G XL CBCT scanner.

    Missing information for a complete study description:

    1. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective):
      • The document mentions "clinical evaluation" and "different anatomical sites and different patient population" but does not specify the number of cases/patients, the origin of the data, or if it was retrospective or prospective.
    2. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
      • The document mentions "clinical evaluation" and "clinical experience" but does not specify the number of experts or their qualifications.
    3. Adjudication method (e.g. 2+1, 3+1, none) for the test set:
      • No information provided.
    4. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, if so, what was the effect size of how much human readers improve with AI vs without AI assistance:
      • This device is a CBCT imaging system, not an AI-powered diagnostic algorithm. Therefore, an MRMC study comparing human readers with and without AI assistance is not applicable in this context (and not mentioned). The studies described are assessing the performance of the imaging device itself rather than a CAD/AI component for interpretation.
    5. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
      • Not applicable as it's an imaging device, not a standalone algorithm. The "clinical evaluation" mentioned is of the images generated by the device, not an algorithm's output.
    6. The type of ground truth used (expert consensus, pathology, outcomes data, etc.):
      • For the clinical evaluation, the ground truth seems to be based on "clinical experience" and the ability of the images to show "diagnostic reliability and utility." It's not explicitly stated as expert consensus, pathology, or outcomes data. For the non-clinical tests, physical phantoms were used as the reference.
    7. The sample size for the training set:
      • Not applicable; this is an imaging device, not an algorithm that requires a training set in the typical machine learning sense. The software updates and functionalities are compared to previous versions, but no "training set" for an AI algorithm is referenced.
    8. How the ground truth for the training set was established:
      • Not applicable.

    In summary: The provided text focuses on demonstrating the substantial equivalence of a new CBCT imaging device (NewTom 5G XL) to existing predicate devices by comparing technical specifications and performance metrics using phantoms and general clinical evaluation. It does not describe an AI/CAD algorithm validation study with specific acceptance criteria, sample sizes, and expert adjudication details typical for such submissions.

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