Evidence map›Paper›PMID 33411051›Full record

ArticleEuropean radiology2021

Contrast-enhanced ultrasound: a valuable modality for extracapsular extension assessment in papillary thyroid cancer.

Yan Zhang, Xia Zhang, Jie Li, Qian Cai, Zhi Qiao, Yu Kun Luo

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In one paragraph

Article in European radiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 2 pooled it
4.5field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 2 syntheses or guidelines pooled it, 41 citations in OpenAlex.

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  15. Thermal Ablation for Papillary Thyroid Carcinoma.JAMA otolaryngology-- head & neck surgery · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Yan Zhang *Department of Ultrasound, Division of First Medical Center, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Beijing, 100853, China.
Xia Zhang *Department of Oncology, Division of First Medical Center, Chinese People's Liberation Army General Hospital, Beijing, China.
Jie Li *Department of Pathology, Division of First Medical Center, Chinese People's Liberation Army General Hospital, Beijing, China.
Qian CaiDepartment of Ultrasound, Division of First Medical Center, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Beijing, 100853, China.
Zhi QiaoDepartment of Surgery, Division of First Medical Center, Chinese People's Liberation Army General Hospital, Beijing, China.
Yu Kun LuoDepartment of Ultrasound, Division of First Medical Center, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Beijing, 100853, China. luoyk301@126.com.
Chinese People's Liberation Army · CN

Funding

National nature Science Foundation of China 81901746Natural Science Foundation of Beijing, China 7194318
6 · The paper itself

Abstract

objectivesTo evaluate the diagnostic accuracy of preoperative contrast-enhanced ultrasound (CEUS) to detect extracapsular extension (ECE) and identify the relationship between ECE and nodule enhancement patterns in patients with papillary thyroid cancer (PTC).

methodsPatients with suspected thyroid cancer underwent ultrasound (US) and CEUS examinations. The US and CEUS features of the PTC nodules and thyroid capsule were recorded and classified individually. The accuracy of US and CEUS in detecting ECE was compared individually, and its relationship with various tumour enhancement patterns was analysed. The presence or absence of ECE and cervical lymph node metastasis (LNM) was confirmed pathologically.

resultsThe final dataset included 119 patients with 124 PTC nodules. Seventy-two (60.5%) of these patients with PTC had no ECE (including 38 patients with single capsule invasion), while the remaining 52 had ECE. A significant difference was found in nodules with non-capsule invasion, single capsule invasion, and ECE between the cervical LNM and non-LNM groups (p < 0.01). Receiver operating characteristic curve analysis demonstrated that area under the curve (AUC) of ECE for cervical LNM was higher than that of capsule invasion (71.9% vs. 49.6%). Moreover, the CEUS images acquired to detect ECE showed higher AUC values than those of US images (79.4% vs. 65.8%) (p = 0.02). Among the PTC nodules with differential enhancement, hyper-enhanced nodules had the highest incidence of capsule invasion (41.9%), while hypo-enhanced ones had a higher incidence of ECE (47.4%).

conclusionsCompared with conventional US, CEUS is a more valuable and non-invasive imaging modality to detect ECE. KEY POINTS: • Single capsular invasion was a poor predictor of cervical lymph node metastasis, while extracapsular extension assessments were clinically significant for predicting cervical lymph node metastasis. • CEUS is better than conventional US in detecting extracapsular extension in papillary thyroid carcinoma (AUC: 79.4% vs. 65.8%) (p = 0.02). • Among the thyroid papillary carcinoma nodules with differential enhancement, hyper-enhanced nodules had the highest incidence of single capsule invasion (41.9%), while hypo-enhanced ones had a higher incidence of ECE (47.4%).

Indexed as

Extranodal ExtensionThyroid NeoplasmsHumansLymphatic MetastasisThyroid Cancer, PapillaryUltrasonographyContrast mediaNeoplasm invasivenessThyroid neoplasmsUltrasonography

Identifiers

PMID33411051
OpenAlexW3118240915

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.