ArticleKorean journal of radiology
Value of power Doppler and gray-scale US in the diagnosis of carpal tunnel syndrome: contribution of cross-sectional area just before the tunnel inlet as compared with the cross-sectional area at the tunnel.
Article in Korean journal of radiology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03213847 (Superb Microvascular Imaging of Median Nerve in Carpal Tunnel Syndrome), which is not on this map. Cited by 27 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Superb Microvascular Imaging of Median Nerve in Carpal Tunnel Syndrome: A Novel Technique in Diagnostic Ultrasound
Who cites it
27 citing papers in PubMed, 1 synthesis or guideline pooled it, 73 citations in OpenAlex.
- Superb microvascular imaging (SMI) in the evaluation of musculoskeletal disorders: a systematic review.La Radiologia medica · 2020Pooled it
- Multilevel evaluation of the median nerve in carpal tunnel syndrome using microvascular doppler ultrasonography.Skeletal radiology · 2026Article
- Body surface area-adjusted median nerve cross-sectional area and multimodal ultrasound improve diagnosis of carpal tunnel syndrome.Frontiers in surgery · 2026Article
- Complementary Role of Ultrasound and Clinical Features in Assessing Carpal Tunnel Syndrome Severity: A Cross-Sectional Study.Diagnostics (Basel, Switzerland) · 2025Article
- Article
- Gray-Scale and Power Doppler Ultrasound Findings Predictive of Cubital Tunnel Syndrome Severity.Hand (New York, N.Y.) · 2024Article
- Assessing the Potential for Error in Investigating Intraneural Vascularity: A Need for a Standardized Imaging Protocol.Journal of diagnostic medical sonography : JDMS · 2023Article
- The Impact of Reference Standard on Diagnostic Testing Characteristics for Carpal Tunnel Syndrome: A Systematic Review.Plastic and reconstructive surgery. Global open · 2023Article
- Spotlight on Nerves: Portable Multispectral Optoacoustic Imaging of Peripheral Nerve Vascularization and Morphology.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
- Diagnostic Contradictions in Carpal Tunnel Syndrome.Revista brasileira de ortopedia · 2023Article
- Diagnostic Utility of Superb Microvascular Imaging and Power Doppler Ultrasonography for Visualizing Enriched Microvascular Flow in Patients With Carpal Tunnel Syndrome.Frontiers in neurology · 2022Article
- The Morphological and Dynamic Changes of Ultrasound in the Evaluation of Effects of Oral Steroids Treatment for Patients with Carpal Tunnel Syndrome.Diagnostics (Basel, Switzerland) · 2021Article
- Ultrasonography Findings of the Carpal Tunnel after Endoscopic Carpal Tunnel Release for Carpal Tunnel Syndrome.Korean journal of radiology · 2021Article
- Quantitative assessment of intraneural vascular alterations in peripheral nerve trauma using high-resolution neurosonography: technical note.Scientific reports · 2021Article
- High-resolution ultrasonography in carpal tunnel syndrome: role of ancillary criteria in diagnosis and response to steroid injection.Clinical rheumatology · 2021Article
- Review Article "Spotlight on Ultrasonography in the Diagnosis of Peripheral Nerve Disease: The Evidence to Date".International journal of general medicine · 2021Review
- Recent Advances in Ultrasound Diagnosis of Carpal Tunnel Syndrome.Diagnostics (Basel, Switzerland) · 2020Review
- Ultrasound parameters to identify and diagnose carpal tunnel syndrome. A review of the literature.Australasian journal of ultrasound in medicine · 2020Review
- Current and future applications of ultrasound imaging in peripheral nerve disorders.World journal of radiology · 2020Review
- Use of Magnetic Resonance Neurography for Evaluating the Distribution and Patterns of Chronic Inflammatory Demyelinating Polyneuropathy.Korean journal of radiology · 2020Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo determine the value of gray-scale and power Doppler ultrasonography in the evaluation of carpal tunnel syndrome (CTS). MATERIALS AND
methodsMedian nerves at the carpal tunnel were evaluated by using gray-scale and power Doppler ultrasonography and by using accepted and new criteria in 42 patients with CTS (62 wrists) confirmed by electromyogram and 33 control subjects. We evaluated the cross-sectional area of the nerve just proximal to the tunnel inlet (CSAa), and at mid level (CSAb). We then calculated the percentage area increase of CSAb, and area difference (CSAb-CSAa). We measured two dimensions of the nerve at the distal level to calculate the flattening ratio. The power Doppler ultrasonography was used to assess the number of vessels, which proceeded to give a score according to the vessel number, and lastly evaluated the statistical significance by comparing the means of patients with control subjects by the Student t test for independent samples. Sensitivities and specificities were determined for sonographic characteristics mentioned above. We obtained the receiver operating characteristic (ROC) curve to assess the optimal cut-off values for the diagnosis of CTS.
resultsA statistically significant difference was found between patients and the control group for mean CSAb, area difference, percentage area increase, and flattening ratio (p < 0.001, p < 0.001, p < 0.001, p < 0.05, respectively). From the ROC curve we obtained optimal cut-off values of 11 mm(2) for CSAb, 3.65 for area difference, 50% for the percentage of area increase, and 2.6 for the flattening ratio. The mean number of vessels obtained by power Doppler ultrasonography from the median nerve was 1.2. We could not detect vessels from healthy volunteers. Mean CSAbs related to vascularity intensity scores were as follows: score 0: 12.3 ± 2.8 mm(2), score 1: 12.3 ± 3.1 mm(2), score 2: 14.95 ± 3.5 mm(2), score 3: 19.3 ± 3.8 mm(2). The mean PI value in vessels of the median nerve was 4.1 ± 1.
conclusionGray-scale and power Doppler ultrasonography are useful in the evaluation of CTS.
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