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This specification covers the different types, appropriate applicability, and safety and sterilizability requirements that pertain to the combined use of stereotactic instruments or systems with imaging techniques, to direct a diagnostic or therapeutic modality into a specific target within the brain, based on localization information derived from such imaging techniques. A stereotactic instrument or system is a guiding, aiming, or viewing device used in human neurosurgery for the purpose of manually directing a system or treating modality to a specific point within the brain by radiographic, imaging, or other visualization or identification of landmarks or targets or lesions.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
Significance and Use
The following uses of imaging-guided stereotactic surgery have been documented in the literature, and are presented as examples. This list is not inclusive of all the techniques presently being used, and certainly does not reflect nor intend to impede the development of new techniques in the future:
Biopsy of intracranial tissue,
Implantation of radioisotopes by various techniques,
Aspiration of cysts,
Aspiration of abcesses,
Instillation of therapeutic agents, including antibiotics, chemotherapeutic agents, tissue, drugs, and neurotransmitters,
Insertion of electrodes for recording of electrical activity or impedance,
Insertion of probes for lesion production in functional neurosurgery,
Insertion of electrodes for stimulation,
Aspiration of hematomas,
Resection of mass lesions,
Laser vaporization or removal of intracranial tissue,
Guidance of externally delivered radiation therapy,
Adjunct to open surgical procedures,
Placement of catheters into ventricles, cysts, and so forth, and
1.1 This specification covers the combined use of stereotactic instruments or systems with imaging techniques, to direct a diagnostic or therapeutic modality into a specific target within the brain, based on localization information derived from such imaging techniques.
1.2 For the purpose of this specification, a stereotactic instrument or system is a guiding, aiming, or viewing device used in human neurosurgery for the purpose of manually directing a system or treating modality to a specific point within the brain by radiographic, imaging, or other visualization or identification of landmarks or targets or lesions.
1.3 Definition of Stereotactic Imaging Systems—Types of imaging-guided systems all require three components: an imaging system, a stereotactic frame, or other physical device to identify the position of a point in space, and a method to relate image-generated coordinates to frame or device coordinates. See Performance Specification F 1266
1.4 General Types of Imaging that May Be Used With Stereotactic Systems—Currently employed imaging modalities used in imaging-guided stereotactic systems include radiography, angiography, computed tomography, magnetic resonance imaging, ultrasound, biplane and multiplane digital subtraction angiography, and positron emission scanning. However, it is recognized that other modalities may be interfaced with currently available and future stereotactic systems and that new imaging modalities may evolve in the future. Standards for imaging devices will be dealt with in documents concerning such devices, and will not be addressed herein.
1.5 General types of diagnostic modalities include biopsy instruments, cannulas, endoscopes, electrodes, or other such instruments. Therapeutic modalities include, but are not limited to, heating, cooling, irradiation, laser, injection, tissue transplantation, mechanical or ultrasonic disruption, and any modality ordinarily used in cerebrospinal surgery.
1.6 Probe—Any system or modality directed by stereotactic techniques, including mechanical or other probe, a device that is inserted into the brain or points to a target, and stereotactically directed treatment or diagnostic modality.
Note 1—Examples presented throughout this specification are listed for clarity only; that does not imply that use should be restricted to the procedures or examples listed.
1.7 Robot—A power-driven servo-controlled system for controlling and advancing a probe according to a predetermined targeting program.
1.8 Digitizer—A device that is directed to indicate the position of a probe or point in stereotactic or other coordinates.
1.9 Frameless System—A system that does not require a stereotactic frame, that identifies and localizes a point or volume in space by means of data registration, and a method to relate that point or volume to its representation derived from an imaging system.
1.10 The values stated in SI units are to be regarded as the standard.
1.11 The following precautionary caveat pertains only to the test method portion, Section 3, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
F1266 Performance Specification for Cerebral Stereotactic Instruments
ICS Number Code 11.040.99 (Other medical equipment)
UNSPSC Code 42200000(Medical diagnostic imaging and nuclear medicine products)
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ASTM F1719-96(2008), Standard Specification for Image-Interactive Stereotactic and Localization Systems, ASTM International, West Conshohocken, PA, 2008, www.astm.orgBack to Top