Diagnostic application of sound speed correction for endoscopic ultrasound-guided tissue acquisition of pancreatic mass

Chen, Weiqing; Xu, Tao

doi:10.1055/a-1300-0983

Cited by 1 publication

(1 citation statement)

References 6 publications

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“… 11 , 12 In contrast, sound speed (SS) of EUS is a new noninvasive method for virtual touch tissue quantification, which does not rely on physicians' experience and has the advantages of objectivity, convenience and noninvasiveness. Only one research shows that SS can be applied to EUS‐guided tissue collection of pancreatic masses, 13 suggesting that SS has a very promising application in noninvasive adjunctive diagnosis.…”

Section: Introductionmentioning

confidence: 99%

Clinical value of endoscopic ultrasound sound speed in differential diagnosis of pancreatic solid lesion and prognosis of pancreatic cancer

Qiu,

Li,

Long

et al. 2024

Cancer Medicine

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BackgroundDifferential diagnosis of pancreatic solid lesion (PSL) and prognosis of pancreatic cancer (PC) is a clinical challenge. We aimed to explore the differential diagnostic value of sound speed (SS) obtained from endoscopic ultrasonography (EUS) in PSL and the prognostic value of SS in PC.MethodsPatients with PSL in The Third Xiangya Hospital of Central South University from March 2019 to October 2019 were prospectively enrolled, who obtained SS from PSL. Patients were divided into the PC group and the pancreatic benign lesion (PBL) group. SS1 is the SS of lesions and SS2 is the SS of normal tissues adjacent to lesions. Ratio1 is equal to SS1 divided by SS2 of PSL (ratio1 = SS1/SS2).ResultsEighty patients were enrolled (24 PBL patients, 56 PC patients). SS1 and ratio1 in PC group were higher compared with PBL group (SS1:1568.00 vs. 1550.00, Z = −2.066, p = 0.039; ratio1: 1.0110 vs. 1.0051, Z = −3.391, p = 0.001). The SS1 in PC (Z = −6.503, p < 0.001) was higher compared to SS2. In the nonsurgical group of PC, low ratio1 predicted high overall survival (OS) (7.000 months vs. 4.000 months; p = 0.039). In the surgical group of PC, low SS1 was associated with low median OS (4.000 months vs. 12.000 months; p = 0.033).ConclusionsSS plays a vital role in distinguishing between PBL and PC. Higher SS1 and ratio1 obtained by EUS are more related to PC than PBL. In PC patients, high SS1 may predict pancreatic lesions. In the nonsurgical group of PC, low ratio1 may predict high OS. However, in the surgical group of PC, low SS1 may predict low OS.

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Section: Introductionmentioning

confidence: 99%