Diffusion-weighted imaging versus non-contrast magnetic resonance imaging in the diagnosis of acute appendicitis during pregnancy
Rev. Assoc. Med. Bras. (1992, Impr.)
; Rev. Assoc. Med. Bras. (1992, Impr.);69(1): 56-60, Jan. 2023. tab, graf
Article
de En
|
LILACS-Express
| LILACS
| ID: biblio-1422587
Bibliothèque responsable:
BR1.1
ABSTRACT
SUMMARY OBJECTIVE:
The aim of this study was to evaluate the diagnostic performance of diffusion-weighted imaging compared to non-contrast magnetic resonance imaging in the differential diagnosis of acute appendicitis in pregnant patients.METHODS:
A total of 72 pregnant patients with the suspicion of acute appendicitis who underwent magnetic resonance imaging combined with diffusion-weighted imaging examinations were enrolled in this retrospective study. Magnetic resonance imaging images (non-contrast and diffusion-weighted imaging sequences) were evaluated. Moreover, apparent diffusion coefficient ratios were estimated. The diagnostic performances of magnetic resonance imaging and diffusion-weighted imaging findings were statistically analyzed on the basis of surgical and follow-up results.RESULTS:
Of 72 pregnant patients, 10 (14%) had acute appendicitis on magnetic resonance imaging and diffusion-weighted imaging. Among 10 patients with acute appendicitis, three (3/10) had perforation. diffusion-weighted imaging findings had higher sensitivity (90 versus 60%), negative predictive value (98.41 versus 93.94%), and accuracy (98.61 versus 94.44%) ratios compared to non-contrast magnetic resonance imaging in the diagnosis of acute appendicitis. There was one false-negative result on diffusion-weighted imaging. Diffusion restriction facilitated the detection of appendicitis. The apparent diffusion coefficient ratios were lower in acute appendicitis than in the normal appendix (0.70±0.19 versus 0.96±0.16) (p<0.05).CONCLUSION:
With a shorter scan time and higher diagnostic accuracy, diffusion-weighted imaging can be useful for the early diagnosis of acute appendicitis and for planning appropriate management.
Texte intégral:
1
Collection:
01-internacional
Base de données:
LILACS
Type d'étude:
Diagnostic_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
/
Screening_studies
Langue:
En
Journal:
Rev. Assoc. Med. Bras. (1992, Impr.)
Sujet du journal:
EducaÆo em Sa£de
/
GestÆo do Conhecimento para a Pesquisa em Sa£de
/
MEDICINA
Année:
2023
Type de document:
Article
Pays d'affiliation:
Turquie
Pays de publication:
Brésil