Reliability of ultrasonography in the diagnosis of acute appendicitis

Thomas, George; Babu, Kailash; Thomas, P.

doi:10.18203/2349-2902.isj20151509

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…It indicates that the ultrasound device can differentiate appendix inflammation with the criteria mentioned above in patients experiencing pain and lower right abdominal pain caused by Acute Appendicitis. The sensitivity of a diagnostic test is influenced by several factors, such as well-trained operators, operators' sufficient experiences in handling cases, the quality of ultrasound modalities, patients' conditions such as obesity, poor patient coordination due to pain that disrupts the examination, the presence of air around the appendix that interferes with appendix visualization, as well as appendix location (6,7,16). The sensitivity value in this study is quite good (82.7%), which is indicated by the appendix diameter > 6 mm and the lack of compressible, which has a high percentage of positive ultrasound results followed by the results of histopathology.…”

Section: Discussionmentioning

confidence: 99%

“…Ultrasonography is one of the imaging modalities of the last decade widely used with a variety of considerations that ultrasound is an accessible, mobile, noninvasive, and relatively inexpensive examination. Although it is known that ultrasound has lower sensitivity and specificity values than CT-Scan, this tool is preferred as it has several advantages, as mentioned previously (6)(7)(8)(9). Several studies that have been carried out show the results of ultrasound diagnostic tests as a diagnostic modality for acute appendicitis, which has values that vary from low to high, namely sensitivity and specificity of 60-95%.…”

Section: Introductionmentioning

confidence: 99%

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The Evaluation of the Sensitivity and Specificity of Ultrasound Examination in Patients With Suspected Acute Appendicitis

Majdawati¹,

Sarı²

2021

Advances in Health Sciences Research

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Background: Acute Appendicitis is inflammation of the appendix, which manifests as pain in the lower right abdomen that can develop into an acute abdomen. This situation can end in the emergency room and require immediate surgical treatment. Ultrasound is the initial choice most often used for the diagnosis of Appendicitis as well as determining whether surgery is needed. Objective: To identify the sensitivity and specificity of ultrasound as an imaging modality for the diagnosis of Acute Appendicitis at PKU Muhammadiyah Gamping Hospital in Yogyakarta. The results of this diagnostic test are essential to be used as an evaluation of the radiology skills, the ultrasound modalities used in health services, as well as being useful for improvement. Method: This research study is a diagnostic test of ultrasound of suspected Acute Appendicitis with a gold standard. The result emerged from the histopathological tissue from the appendectomy. The research subjects consisted of 72 suspected Appendicitis subjected to ultrasound and continued with appendectomy and histopathological in 2014 -2017. The sensitivity and specificity values of the ultrasound were calculated, which were useful for evaluating diagnostic services at PKU Muhammadiyah Gamping Hospital, Yogyakarta. Results: The number of study subjects was 72, with positive ultrasound results of 52 and a negative ultrasound of 20 samples. The 52 respondents with positive ultrasound consisted of 25 adults and 47 children dominated by males. Twenty samples with negative ultrasound results consisted of 9 adults and 11 children dominated by females. The results of sensitivity and specificity values of ultrasound were 82.7%, 33.33%, and 53% of accuracy. The results of this value can be used as an evaluation of ultrasound in cases of Acute Appendicitis in PKU Muhammadiyah Gamping, Hospital, Yogyakarta in Indonesia. Conclusion: Ultrasound has a good sensitivity value for the diagnosis of Acute Appendicitis. However, it has a low specificity value. It shows that the ultrasound can be used as a modality for diagnosing Acute Appendicitis, which has a role in screening the diagnosis. Ultrasound cannot be used as a screening for suspected patients with Acute Appendicitis who are entirely normal or in good condition. It will be the researchers' evaluation of the cause of the low specificity value to improve the diagnosis of suspected Appendicitis.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Evaluation of the Sensitivity and Specificity of Ultrasound Examination in Patients With Suspected Acute Appendicitis

Majdawati¹,

Sarı²

2021

Advances in Health Sciences Research

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Pemeriksaan Ultrasonografi dan CT-Scan untuk Diagnosis Apendisitis Akut pada Anak

Susanto¹

2021

J. Kdokt Meditek

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Apendisitis akut merupakan suatu keadaan tersering yang memerlukan tindakan bedah pada anak. Ketepatan untuk menentukan diagnosis dan intervensi bedah berhubungan erat dengan luaran akhir. Diagnosis apendisitis akut dengan keluhan yang tidak spesifik sering membingungkan. Pendekatan diagnosis seperti anamnesis, pemeriksaan fisik, dan pemeriksaan laboratorium rutin tidak selalu akurat. Pemeriksaan diagnostik pencitraan seperti ultrasonografi (USG) dan computed tomography scan (CT-scan) sering digunakan untuk membantu menegakkan diagnosis. Tujuan pemeriksaan pencitraan untuk mengkonfirmasi atau menyingkirkan diagnosis apendisitis akut serta menentukan apendisitis tanpa atau dengan komplikasi. Keterlambatan menentukan diagnosis berhubungan erat dengan meningkatnya angka kesakitan, angka kematian, dan biaya perawatan. Komplikasi dapat berupa perforasi, abses abdominal, atau kematian. Perforasi umumnya terjadi pada usia anak dan remaja dengan angka kejadian berkisar 17-40%. Secara umum angka kematian akibat apendisitis kurang dari 1% dan meningkat 5-15% pada anak dan remaja. Pemeriksaan USG memiliki sensitivitas dan spesifisitas yang sama baiknya dengan pemeriksaan CT-scan.

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Assessment of Organ Dose and Effective Dose from Head CT Examination in a Large Hospital in South-Southern Nigeria

Obed¹,

Ekpo²

2018

IJMPCERO

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The magnitude of radiation dose imparted to patients who underwent Head Computed Tomography examination in a large tertiary hospital in South-Southern Nigeria has been estimated. CT-ExPO dosimetry software was used to determine the effective and organ doses to the head region of 40 adult patients. Scanning parameters were retrieved from the CT monitor for both contrast-enhanced and non-contrast head CT examinations. The tube potential ranged from 100 kVp to 120 kVp, while the mAs ranged from 127 mAs to 202 mAs. The mean values of the volume Computed Tomography Dose Index (CTDI vol) and Dose Length Product (DLP) for the contrast-enhanced Head CT examination were 166.4 ± 39.6 mGy and 3568.6 ± 756.1 mGy•cm, respectively, while for the non-contrast examination they were 86.6 ± 30.4 mGy and 2102.3 ± 870.3 mGy•cm, respectively. The effective doses were higher for the contrast-enhanced study than for the non-contrast study by a factor of 1.6. Results were compared with the European Union reference doses and other published data and were found to be higher. Doses to the organs which comprise of brain, red bone marrow, thyroid and eye lens were also estimated. The high variation in the doses in this study may be due to differences in imaging protocols such as large range of mAs and scan lengths and also the algorithm of the scanner.

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Reliability of ultrasonography in the diagnosis of acute appendicitis

Cited by 3 publications

References 10 publications

The Evaluation of the Sensitivity and Specificity of Ultrasound Examination in Patients With Suspected Acute Appendicitis

The Evaluation of the Sensitivity and Specificity of Ultrasound Examination in Patients With Suspected Acute Appendicitis

Pemeriksaan Ultrasonografi dan CT-Scan untuk Diagnosis Apendisitis Akut pada Anak

Assessment of Organ Dose and Effective Dose from Head CT Examination in a Large Hospital in South-Southern Nigeria

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