Nilai Hounsfield Unit (HU) CT-Scan pada Lesi Paru-Paru Pasien Suspek COVID-19

Mahfud Edy Widiatmoko; Shelsa Ramadhanti

doi:10.22146/jkesvo.78738

Nilai Hounsfield Unit (HU) CT-Scan pada Lesi Paru-Paru Pasien Suspek COVID-19

https://doi.org/10.22146/jkesvo.78738

Mahfud Edy Widiatmoko^(1*), Shelsa Ramadhanti⁽²⁾

(1) Jurusan Teknik Radiodiagnostik dan Radioterapi, Poltekkes Kemenkes Jakarta II
(2) Program Studi Teknologi Radiologi Pencitraan, Poltekkes Kemenkes Jakarta II
(*) Corresponding Author

Abstract

Latar Belakang: National Health Commission of China menyatakan bahwa Computed Tomography (CT) memiliki peranan penting dalam hal menegakkan diagnosis dan pemantauan prognosis pada pasien COVID-19 karena memiliki sensitivitas diagnostik tinggi sebesar 97,2% dan menjadi pelengkap dari pengujian RT-PCR. Gambaran CT thorax pada pasien dengan lesi paru-paru suspek COVID-19 terlihat nodul konsolidasi dan Ground Glass Opacities (GGO) di sebagian area. Sebaran nodul GGO pada COVID-19 diklasifikasikan dengan istilah CO-RADS. Karakteristik nodul lesi dapat dianalisis kepadatan jaringan dengan nilai Hounsfield Unit (HU).

Tujuan: Mengetahui nilai Houndsfield Unit (HU) CT pada lesi paru-paru pasien suspek COVID-19 berdasarkan kategori CO-RADS.

Metode: Penelitian ini menggunakan studi cross‑sectional berdasarkan data sekunder hasil rekonstruksi gambar pemeriksaan CT thorax dengan klinis suspek pneumonia COVID-19 tahun 2021 dan jumlah sampel 40 kasus.

Hasil: Hasil rata-rata nilai HU pada kategori CO-RADS 4, 5, dan 6, berturut-turut, -203,00 HU, -168,97 HU), dan -133,57 HU). Berdasarkan uji statistik, nilai p < 0,05 yang artinya bahwa rata-rata nilai HU ketiga kategori CO-RADS berbeda secara signifikan.

Kesimpulan: Ada beda tingkatan klasifikasi CO-RADS 4-6, yaitu bahwa semakin tinggi tingkatan kategori CO-RADS, semakin tinggi pula nilai HU CT pada lesi paru-paru.

Keywords

Hounsfield Unit (HU); CT-Scan Thorax; CO-RADS; Lesi; COVID-19

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DOI: https://doi.org/10.22146/jkesvo.78738