High-resolution flat panel CT versus 3-T MR arthrography of the wrist: initial results in vivo

Sonnow, Lena; Koennecker, Soeren; Luketina, Rosalia; Werncke, Thomas; Hinrichs, Jan B.; Meyer, Bernhard; Wacker, Frank; Falck, Christian von

doi:10.1007/s00330-018-5901-5

Cited by 12 publications

(12 citation statements)

References 22 publications

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“…Our results are in line with previous studies, suggesting that FPCT arthrography permits fine assessment of articular cartilage [7,13,14]. In the same way, Sonnow et al recently showed that FPCT arthrography of the wrist is advantageous over 3 T MR arthrography regarding the depictability of the intrinsic ligaments, TFCC, and hyaline cartilage [19]. Given its higher spatial resolution, FPCT arthrography logically offers better delineation of articular cartilage lesions than MR arthrography, especially in the ankle joint where hyaline cartilage is very thin.…”

Section: Discussionsupporting

confidence: 92%

“…Of note, MR image allows detection of cartilage defect but does not permit fine assessment of the flap Some limitations inherent to the materials and methods used in our study should now be considered. First, FPCT arthrography is an innovative technique that has mostly been studied on phantoms, animals, or using cadaveric specimens, with very limited in vivo evaluation [7,13,14,[17][18][19]. Second, we acknowledge that the use of different FPCT acquisition protocols, with different scan duration, tube voltage, and current, may lead to lower contrast-to-noise ratio, or to increased radiation dose, than that observed in our study [7].…”

Section: Discussionmentioning

confidence: 84%

“…In addition, at the ankle, the radiation dose in FPCT is usually similar to or even lower than that associated with MDCT if optimized collimation and scan parameters are used [7]. However, FPCT arthrography is a relatively new imaging modality that remains poorly investigated in vivo [18,19].…”

Section: Discussionmentioning

confidence: 99%

“…FPCT arthrography has recently been shown to be as feasible as MDCT arthrography with similar image quality in vitro and ex vivo [7,13,14,17]. In clinical practice, FPCT arthrography can now be performed immediately after arthrography, without relocating the patient, which avoids resorption of contrast material and improves workflow [18,19]. However, FPCT arthrography is a relatively new imaging modality that has mostly been studied on phantoms and cadaveric specimens, with very limited in vivo evaluation [7,13,14,[17][18][19].…”

Section: Introductionmentioning

confidence: 99%

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Flat-panel CT arthrography for cartilage defect detection in the ankle joint: first results in vivo

et al. 2020

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Objectives The purpose of this study was to compare the diagnostic performance of flat-panel computed tomography (FPCT) arthrography for cartilage defect detection in the ankle joint to direct magnetic resonance (MR) arthrography using multidetector computed tomography (MDCT) arthrography as the reference standard. Methods Twenty-seven patients with specific suspicion of articular cartilage lesion underwent ankle arthrography with injection of a mixture of diluted gadolinium and iobitridol and were examined consecutively with the use of FPCT, MDCT, and 1.5 T MR imaging. FPCT, MDCT, and MR arthrography examinations were blinded and randomly evaluated by two musculoskeletal radiologists in consensus. In each ankle, eight articular cartilage areas were assessed separately: medial talar surface, medial talar trochlea, lateral talar trochlea, lateral talar surface, tibial malleolus, medial tibial plafond, lateral tibial plafond, and fibular malleolus. Findings at FPCT and MR were compared with MDCT assessments in 216 cartilage areas. Results For the detection of cartilage defects, FPCT demonstrated a sensitivity of 97%, specificity of 95%, and accuracy of 96%; and MR arthrography showed a sensitivity of 69%, specificity of 94%, and accuracy of 87%. FPCT and MR arthrography presented almost perfect agreement (κ = 0.87) and moderate agreement (κ = 0.60), respectively, with MDCT arthrography. Mean diagnostic confidence was higher for FPCT (2.9/3) than for MR (2.3/3) and MDCT (2.7/3) arthrography. Conclusions FPCT demonstrated better accuracy than did 1.5 T MR arthrography for cartilage defect detection in the ankle joint. Therefore, FPCT should be considered in patients scheduled for dedicated imaging of ankle articular cartilage.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Flat-panel CT arthrography for cartilage defect detection in the ankle joint: first results in vivo

et al. 2020

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“…Not every TFCC lesion can be identified in contrastenhanced MRI, though, often requiring wrist arthrography with subsequent 3D imaging to evaluate the extent of TFCC discontinuity [16]. The advantages of injecting contrast agent into different compartments of the wrist have been shown for interosseous ligament and ulnocarpal complex injuries before [32][33][34]. Joint distension improves the visibility of anatomical structures [35] and with regard to the TFCC, facilitates the differentiation between its deep and superficial layer [17,18].…”

Section: Discussionmentioning

confidence: 99%

The importance of radial multiplanar reconstructions for assessment of triangular fibrocartilage complex injury in CT arthrography of the wrist

Grunz

Gietzen

Luetkens

et al. 2020

BMC Musculoskelet Disord

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Background: Triangular fibrocartilage complex (TFCC) lesions commonly cause ulnar-sided wrist pain and instability of the distal radioulnar joint. Due to its triangular shape, discontinuity of the TFCC is oftentimes difficult to visualize in radiological standard planes. Radial multiplanar reconstructions (MPR) may have the potential to simplify diagnosis in CT wrist arthrography. The objective of this study was to assess diagnostic advantages provided by radial MPR over standard planes for TFCC lesions in CT arthrography. Methods: One hundred six patients (49 women, 57 men; mean age 44.2 ± 15.8 years) underwent CT imaging after wrist arthrography. Two radiologists (R1, R2) retrospectively analyzed three randomized datasets for each CT arthrography. One set contained axial, coronal and sagittal planes (MPR Standard), while the other two included an additional radial reconstruction with the rotating center either atop the ulnar styloid (MPR Styloid) or in the ulnar fovea (MPR Fovea). Readers evaluated TFCC differentiability and condition. Suspected lesions were categorized using Palmer's and Atzei's classification and diagnostic confidence was stated on a fivepoint Likert scale.

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Basic Imaging Principles of Tendons and Ligaments

Bakewell

Gerety

Grainger

2020

Imaging of Orthopedic Sports Injuries

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High-resolution flat panel CT versus 3-T MR arthrography of the wrist: initial results in vivo

Cited by 12 publications

References 22 publications

Flat-panel CT arthrography for cartilage defect detection in the ankle joint: first results in vivo

Flat-panel CT arthrography for cartilage defect detection in the ankle joint: first results in vivo

The importance of radial multiplanar reconstructions for assessment of triangular fibrocartilage complex injury in CT arthrography of the wrist

Basic Imaging Principles of Tendons and Ligaments

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