The Diagnostic Role of US in Patients with Right Lower Quadrant Abdominal Pain

Lee, Sheen Woo; Lee, Jeong Kyong; Baek, Seung Yon; Kang, Byung Chul; Lee, Sun Wha

doi:10.3348/jkrs.2000.43.6.729

Cited by 3 publications

(1 citation statement)

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“… Note.-Numbers in parentheses are 95% CIs. Sn = sensitivity, Sp = specificity, LRP = likelihood ratio for a positive test result by the characteristics of study 1 Study that the age distribution of below 19 years is over 32% ( 53 , 61 - 63 ) 2 Study that the age distribution of 20-49 years is over 60% ( 51 , 55 , 58 ) 3 Study that the age distribution of over 50 years is over 25% ( 56 , 60 ) 4 Study that the male percentage is over 55% ( 61 , 65 - 66 ) 5 Study that the female percentage is over 55% ( 51 - 55 , 58 , 60 , 63 - 64 , 67 , 69 , 72 ) 6 Highly suggestive group: Group of patients with classic clinical findings of appendicitis necessitating urgent surgery (75% over highly probability) 7 Suggestive or atypical appendicitis group: Group of patients with intermediate symptoms necessitating serial observation (25%~75% intermediate probability) 8 Less-likely group: Group of patients with low probability for appendicitis (25% under lower probability). …”

Section: Figmentioning

confidence: 99%

Ultrasonography in the Diagnosis of Appendicitis: Evaluation by Meta-analysis

Kim

Park

et al. 2005

Korean J Radiol

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ObjectiveWe wanted to review the usefulness of ultrasonography (US) for the diagnosis of appendicitis and to evaluate the diagnostic accuracy of US according to patients' and researchers' characteristics.Materials and MethodsThe relevant Korean articles published between 1985 and 2003 were included in this study if the patients had clinical symptoms of acute appendicitis. The histopathologic findings were the reference standard and the data were presented for 2×2 tables. Articles were excluded if patients had no sonographic signs of appendicitis according to graded-compression US. Two reviewers independently extracted the data on study characteristics. The Hasselblad method was used to obtain the combined estimates of sensitivity and specificity for the performance of US.ResultsTwenty-two articles (2,643 patients) fulfilled all inclusion criteria. The estimate of đ calculated by combining the sensitivity and specificity was 2.0054 (95% confidence interval [CI]: 1.8553, 2.1554) by a random effects model. The overall sensitivity and specificity (95% CI) were 86.7% (85.4 to 88.0), and 90.0% (88.9 to 91.2), respectively. According to the subgroup meta-analysis by patients' characteristics, the đ estimate (95% CI) of dominantly younger age, male, and highly clinical suggestive group for US was 2.2388 (1.8758 to 2.6019), 2.7131 (2.2493 to 3.1770), and 2.4582 (1.7387 to 3.1777), respectively. Also, according to subgroup meta-analysis by researchers' characteristics, the đ value (95% CI) for US done by diagnostic radiologists and gray-scale was 2.0195 (1.7942 to 2.2447) and 2.2630 (1.8444 to 2.6815).ConclusionThis evidence suggests that US may be useful for the diagnosis of acute appendicitis, especially when patients are younger age, male, and highly clinical suggestive.

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Section: Figmentioning

confidence: 99%

Ultrasonography in the Diagnosis of Appendicitis: Evaluation by Meta-analysis

Kim

Park

et al. 2005

Korean J Radiol

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2087

Kim

Park

et al. 2006

Ultrasound in Medicine & Biology

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Semilattice strongly regular relations on ordered $ n $-ary semihypergroups

Daengsaen¹,

Leeratanavalee

2021

MATH

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<abstract>In this paper, we introduce the concept of $ j $-hyperfilters, for all positive integers $ 1\leq j \leq n $ and $ n \geq 2 $, on (ordered) $ n $-ary semihypergroups and establish the relationships between $ j $-hyperfilters and completely prime $ j $-hyperideals of (ordered) $ n $-ary semihypergroups. Moreover, we investigate the properties of the relation $ \mathcal{N} $, which is generated by the same principal hyperfilters, on (ordered) $ n $-ary semihypergroups. As we have known from [<xref ref-type="bibr" rid="b21">21</xref>] that the relation $ \mathcal{N} $ is the least semilattice congruence on semihypergroups, we illustrate by counterexample that the similar result is not necessarily true on $ n $-ary semihypergroups where $ n\geq 3 $. However, we provide a sufficient condition that makes the previous conclusion true on $ n $-ary semihypergroups and ordered $ n $-ary semihypergroups where $ n\geq 3 $. Finally, we study the decomposition of prime hyperideals and completely prime hyperideals by means of their $ \mathcal{N} $-classes. As an application of the results, a related problem posed by Tang and Davvaz in [<xref ref-type="bibr" rid="b31">31</xref>] is solved.</abstract>

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The Diagnostic Role of US in Patients with Right Lower Quadrant Abdominal Pain

Cited by 3 publications

References 0 publications

Ultrasonography in the Diagnosis of Appendicitis: Evaluation by Meta-analysis

Ultrasonography in the Diagnosis of Appendicitis: Evaluation by Meta-analysis

2087

Semilattice strongly regular relations on ordered $ n $-ary semihypergroups

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