MR Imaging‒Guided Intervention: Evaluation of MR Conditional Biopsy and Ablation Needle Tip Artifacts at 3T Using a Balanced Fast Field Echo Sequence

Singh, Saurabh; Torrealdea, Francisco; Bandula, Steve

doi:10.1016/j.jvir.2021.03.536

Cited by 4 publications

(3 citation statements)

References 13 publications

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“…As such, a phantom that has been adapted to the target tissue in musculoskeletal interventions (muscle phantom) was selected, in contrast to previous studies, which generally employed a 3 T MRI scanner. 25 , 26 Singh et al 25 evaluated needle artifact diameters using an acrylic phantom modifying only two parameters: IA and read-out direction. Furthermore, in the present study, contrast medium application was also performed for experimental evaluation of the visibility of the target lesion and to emulate as far as possible the clinical routine, exemplarily imitating contrast-enhanced MR-guided punctures of joint structures in the case of capsulitis.…”

Section: Discussionmentioning

confidence: 99%

Artifact characterization of Nitinol needles in magnetic resonance imaging-guided musculoskeletal interventions at 3.0 tesla: a phantom study

Schmidt,

Dietrich,

Seidensticker

et al. 2023

dir

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PURPOSE To characterize the artifacts of an 18-gauge coaxial nickel-titanium needle using a balanced steady-state free precession sequence in magnetic resonance imaging-guided interventions at 3.0 tesla. METHODS The influence of flip angle (FA), bandwidth, matrix, slice thickness (ST), and read-out direction on needle artifact behavior was investigated for different intervention angles (IA). Artifact diameters were rated at predefined positions. Subgroup differences were assessed using Bonferroni-corrected non-parametric tests and correlations between continuous variables were expressed using the Bravais–Pearson coefficient. Interrater reliability was quantified using intraclass correlation coefficients (ICCs), and a contrast-enhanced target lesion to non-enhanced muscle tissue contrast ratio was quantified. RESULTS The artifact diameters decreased with an increase in FA for all IAs ( P < 0.001) and with an increase in ST for IAs of 45°–90° (all P < 0.05). Tip artifacts occurred at low IAs (0°–45°) and gradually increased in size with a decrease in IA ( P = 0.022). The interrater reliability was high (ICC: 0.994–0.999). The contrast-enhanced target lesion to non-enhanced muscle tissue contrast ratio presented positive correlations with increasing FAs and matrices ( P < 0.001; P = 0.003) and a negative correlation with increasing STs ( P = 0.007). CONCLUSION To minimize needle artifacts, it is recommended to use FAs of 40°–60°, a ST of >7 mm, and, if possible, an IA of 45°–60°. The visibility of the target lesion and the needle’s artifact behavior must be weighed up against each other when choosing the ST, while higher FAs (40°–60°) and matrices (224 × 224/256 × 256) are associated with low artifacts and sufficient lesion visibility.

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Section: Discussionmentioning

confidence: 99%

Artifact characterization of Nitinol needles in magnetic resonance imaging-guided musculoskeletal interventions at 3.0 tesla: a phantom study

Schmidt,

Dietrich,

Seidensticker

et al. 2023

dir

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“…However, it is acknowledged that in 3D image-guided interventions, needle artifact volume may be a relevant additional parameter. Though, depending on the sequence acquisition, such an assessment may be not adequately feasible, and several recent studies were also conducted in 2D 34 , 35 . Nevertheless, artifact volume and therefore possible differences to our measurement method should be investigated in future studies.…”

Section: Discussionmentioning

confidence: 99%

Artifact reduction of coaxial needles in magnetic resonance imaging-guided abdominal interventions at 1.5 T: a phantom study

Schmidt

Arnone

Dietrich

et al. 2021

Sci Rep

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Needle artifacts pose a major limitation for MRI-guided interventions, as they impact the visually perceived needle size and needle-to-target-distance. The objective of this agar liver phantom study was to establish an experimental basis to understand and reduce needle artifact formation during MRI-guided abdominal interventions. Using a vendor-specific prototype fluoroscopic T1-weighted gradient echo sequence with real-time multiplanar acquisition at 1.5 T, the influence of 6 parameters (flip angle, bandwidth, matrix, slice thickness, read-out direction, intervention angle relative to B0) on artifact formation of 4 different coaxial MR-compatible coaxial needles (Nitinol, 16G–22G) was investigated. As one parameter was modified, the others remained constant. For each individual parameter variation, 2 independent and blinded readers rated artifact diameters at 2 predefined positions (15 mm distance from the perceived needle tip and at 50% of the needle length). Differences between the experimental subgroups were assessed by Bonferroni-corrected non-parametric tests. Correlations between continuous variables were expressed by the Bravais–Pearson coefficient and interrater reliability was quantified using the intraclass classification coefficient. Needle artifact size increased gradually with increasing flip angles (p = 0.002) as well as increasing intervention angles (p < 0.001). Artifact diameters differed significantly between the chosen matrix sizes (p = 0.002) while modifying bandwidth, readout direction, and slice thickness showed no significant differences. Interrater reliability was high (intraclass correlation coefficient 0.776–0.910). To minimize needle artifacts in MRI-guided abdominal interventions while maintaining optimal visibility of the coaxial needle, we suggest medium-range flip angles and low intervention angles relative to B0.

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“…In a high-field (1.2 T) open system, the apparent widths of the 16 and 18 G biopsy introducer needles made of chromium and nickel-titanium alloys are up to 14 and 11 mm, respectively, on the gradient echo image [5]. In a high-field (3.0 T) closed system, the apparent widths of the 18 G biopsy needles composed of nickel and chromium alloys on the gradient echo image are up to 17 mm [33].…”

Section: Needle Artifactsmentioning

confidence: 99%

Magnetic Resonance Imaging Guidance for Percutaneous Needle Intervention

Uka,

Matsui,

Iguchi

et al. 2024

Interventional Radiology

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Magnetic resonance imaging (MRI) is one of the guiding modalities used for percutaneous needle insertion during interventional procedures. MRI guidance has several advantages, including multiplanar imaging capability, superior soft tissue contrast resolution, and the absence of ionizing radiation. When performing MRI-guided procedures, it is important to understand the suitable MRI systems, instruments, and imaging sequences for intervention. Furthermore, needle artifact characteristics must be fully understood to ensure safe and accurate needle insertion. In this article, we present the fundamental knowledge as regards the use of MRI guidance for percutaneous needle insertion and review its usefulness in representative interventional procedures, such as biopsy and tumor ablation.

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MR Imaging‒Guided Intervention: Evaluation of MR Conditional Biopsy and Ablation Needle Tip Artifacts at 3T Using a Balanced Fast Field Echo Sequence

Cited by 4 publications

References 13 publications

Artifact characterization of Nitinol needles in magnetic resonance imaging-guided musculoskeletal interventions at 3.0 tesla: a phantom study

Artifact characterization of Nitinol needles in magnetic resonance imaging-guided musculoskeletal interventions at 3.0 tesla: a phantom study

Artifact reduction of coaxial needles in magnetic resonance imaging-guided abdominal interventions at 1.5 T: a phantom study

Magnetic Resonance Imaging Guidance for Percutaneous Needle Intervention

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