diff --git a/IRaCIS.Core.Application/Helper/DicomDIRHelper.cs b/IRaCIS.Core.Application/Helper/DicomDIRHelper.cs
index f41bd13cd..7040811c2 100644
--- a/IRaCIS.Core.Application/Helper/DicomDIRHelper.cs
+++ b/IRaCIS.Core.Application/Helper/DicomDIRHelper.cs
@@ -1,16 +1,8 @@
-using DocumentFormat.OpenXml.Office.CustomUI;
-using FellowOakDicom;
+using FellowOakDicom;
 using FellowOakDicom.Media;
 using IRaCIS.Core.Application.ViewModel;
-using IRaCIS.Core.Domain.Models;
-using NPOI.Util;
-using System;
-using System.Collections.Generic;
 using System.Data;
-using System.IO;
-using System.Linq;
 using System.Text;
-using System.Threading.Tasks;
 
 namespace IRaCIS.Core.Application.Helper
 {
diff --git a/IRaCIS.Core.Application/Service/Common/TrialImageDownloadService.cs b/IRaCIS.Core.Application/Service/Common/TrialImageDownloadService.cs
index 5bf9183b6..330ab4482 100644
--- a/IRaCIS.Core.Application/Service/Common/TrialImageDownloadService.cs
+++ b/IRaCIS.Core.Application/Service/Common/TrialImageDownloadService.cs
@@ -1,44 +1,22 @@
 using Aliyun.OSS;
 using CommunityToolkit.HighPerformance;
-using DocumentFormat.OpenXml.EMMA;
-using DocumentFormat.OpenXml.Office.CustomUI;
-using DocumentFormat.OpenXml.Office2010.Excel;
-using DocumentFormat.OpenXml.Office2013.Drawing.ChartStyle;
 using FellowOakDicom;
 using FellowOakDicom.Imaging;
-using FellowOakDicom.Imaging.Render;
 using FellowOakDicom.IO.Buffer;
-using Hangfire.Common;
-using IRaCIS.Core.Application.Contracts;
 using IRaCIS.Core.Application.Helper;
-using IRaCIS.Core.Application.MassTransit.Command;
-using IRaCIS.Core.Application.ViewModel;
-using IRaCIS.Core.Domain.Models;
 using IRaCIS.Core.Infrastructure;
 using MassTransit;
-using Medallion.Threading;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Mvc;
 using MiniExcelLibs;
-using NPOI.Util;
-using Org.BouncyCastle.Utilities.Zlib;
-using SharpCompress.Common;
-using System;
-using System.Collections.Generic;
 using System.Data;
-using System.Diagnostics;
 using System.IO.Compression;
-using System.Linq;
 using System.Runtime.InteropServices;
 using System.Text;
 using System.Text.RegularExpressions;
-using System.Threading.Tasks;
 using System.Web;
 using static IRaCIS.Core.Application.Service.TestService;
-using static IRaCIS.Core.Application.Service.TrialImageDownloadService;
-using static IRaCIS.Core.Domain.Share.StaticData;
-using static Microsoft.EntityFrameworkCore.DbLoggerCategory;
 
 namespace IRaCIS.Core.Application.Service
 {
diff --git a/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs b/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs
index cb899be04..7f69b3f71 100644
--- a/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs
+++ b/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs
@@ -2,24 +2,14 @@
 using FellowOakDicom.Imaging;
 using FellowOakDicom.IO.Buffer;
 using IRaCIS.Core.Application.Contracts;
-using IRaCIS.Core.Application.Filter;
 using IRaCIS.Core.Application.Helper;
 using IRaCIS.Core.Application.Service.ImageAndDoc.DTO;
-using IRaCIS.Core.Domain.Share;
 using IRaCIS.Core.Infrastructure;
-using MathNet.Numerics;
 using Medallion.Threading;
 using Microsoft.AspNetCore.Authorization;
-using Microsoft.AspNetCore.Components.Forms;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Mvc;
-using Microsoft.Extensions.Hosting;
-using NetTopologySuite.Algorithm;
-using SharpCompress.Common;
-using SkiaSharp;
 using System.Data;
-using System.Drawing;
-using ZiggyCreatures.Caching.Fusion;
 
 namespace IRaCIS.Core.Application.Service.ImageAndDoc
 {
diff --git a/IRaCIS.Core.Application/TestService.cs b/IRaCIS.Core.Application/TestService.cs
index 0d6ccf558..3d609a307 100644
--- a/IRaCIS.Core.Application/TestService.cs
+++ b/IRaCIS.Core.Application/TestService.cs
@@ -19,6 +19,7 @@ using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 using MiniExcelLibs;
+using Newtonsoft.Json;
 using SixLabors.ImageSharp;
 using SixLabors.ImageSharp.Formats.Jpeg;
 using SixLabors.ImageSharp.Processing;