SUV is not calculated when TimezoneOffsetFromUTC is negative #635

Author: nroduit

weasis-core/src/main/java/org/weasis/core/api/media/data/TagUtil.java

@@ -20,7 +20,6 @@
 import java.time.format.FormatStyle;
 import java.time.temporal.TemporalAccessor;
 import java.util.ArrayList;
-import java.util.Calendar;
 import java.util.Date;
 import java.util.regex.Pattern;
 import javax.xml.stream.XMLStreamReader;
@@ -98,26 +97,6 @@ public static LocalDateTime toLocalDateTime(Date date) {
     return null;
   }
 
-  public static Date dateTime(Date date, Date time) {
-    if (time == null) {
-      return date;
-    } else if (date == null) {
-      return time;
-    }
-    Calendar calendarA = Calendar.getInstance();
-    calendarA.setTime(date);
-
-    Calendar calendarB = Calendar.getInstance();
-    calendarB.setTime(time);
-
-    calendarA.set(Calendar.HOUR_OF_DAY, calendarB.get(Calendar.HOUR_OF_DAY));
-    calendarA.set(Calendar.MINUTE, calendarB.get(Calendar.MINUTE));
-    calendarA.set(Calendar.SECOND, calendarB.get(Calendar.SECOND));
-    calendarA.set(Calendar.MILLISECOND, calendarB.get(Calendar.MILLISECOND));
-
-    return calendarA.getTime();
-  }
-
   public static String formatDateTime(TemporalAccessor date) {
     if (date instanceof LocalDate) {
       return DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).format(date);

weasis-dicom/weasis-dicom-codec/src/main/java/org/weasis/dicom/codec/utils/DicomMediaUtils.java

@@ -16,13 +16,15 @@
 import java.time.LocalTime;
 import java.time.temporal.TemporalAccessor;
 import java.util.Arrays;
+import java.util.Calendar;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Objects;
 import java.util.Set;
+import java.util.TimeZone;
 import java.util.TreeSet;
 import java.util.regex.Pattern;
 import javax.xml.stream.XMLInputFactory;
@@ -474,22 +476,15 @@ public static void computeSUVFactor(Attributes dicomObject, Taggable taggable, i
               Date injectDateTime =
                   DicomUtils.getDateFromDicomElement(
                       dcm, Tag.RadiopharmaceuticalStartDateTime, null);
-              Date acquisitionDateTime =
-                  TagUtil.dateTime(
-                      DicomUtils.getDateFromDicomElement(dicomObject, Tag.AcquisitionDate, null),
-                      DicomUtils.getDateFromDicomElement(dicomObject, Tag.AcquisitionTime, null));
-              Date scanDate = DicomUtils.getDateFromDicomElement(dicomObject, Tag.SeriesDate, null);
+              Date acquisitionDateTime = dicomObject.getDate(Tag.AcquisitionDateAndTime);
+              Date scanDate = dicomObject.getDate(Tag.SeriesDateAndTime);
               if ("START".equals(dicomObject.getString(Tag.DecayCorrection))
                   && totalDose != null
                   && halfLife != null
                   && acquisitionDateTime != null
                   && (injectDateTime != null || (scanDate != null && injectTime != null))) {
                 double time = 0.0;
-                long scanDateTime =
-                    TagUtil.dateTime(
-                            scanDate,
-                            DicomUtils.getDateFromDicomElement(dicomObject, Tag.SeriesTime, null))
-                        .getTime();
+                long scanDateTime = scanDate.getTime();
                 if (injectDateTime == null) {
                   if (scanDateTime > acquisitionDateTime.getTime()) {
                     // per GE docs, may have been updated during post-processing into new series
@@ -504,7 +499,8 @@ public static void computeSUVFactor(Attributes dicomObject, Taggable taggable, i
                     }
                   }
                   if (scanDate != null) {
-                    injectDateTime = TagUtil.dateTime(scanDate, injectTime);
+                    injectDateTime =
+                        dateTime(dicomObject.getTimeZone(), scanDate, injectTime, false);
                     time = (double) scanDateTime - injectDateTime.getTime();
                   }
 
@@ -537,6 +533,30 @@ public static void computeSUVFactor(Attributes dicomObject, Taggable taggable, i
     }
   }
 
+  // Remove this method and use DateTimeUtils
+  public static Date dateTime(TimeZone tz, Date date, Date time, boolean acceptNullDateOrTime) {
+    if (!acceptNullDateOrTime && (date == null || time == null)) {
+      return null;
+    }
+    Calendar calendar =
+        tz == null || date == null ? Calendar.getInstance() : Calendar.getInstance(tz);
+
+    Calendar datePart = Calendar.getInstance();
+    datePart.setTime(date == null ? new Date(0) : date);
+    calendar.set(Calendar.YEAR, datePart.get(Calendar.YEAR));
+    calendar.set(Calendar.MONTH, datePart.get(Calendar.MONTH));
+    calendar.set(Calendar.DAY_OF_MONTH, datePart.get(Calendar.DAY_OF_MONTH));
+
+    Calendar timePart = Calendar.getInstance();
+    timePart.setTime(time == null ? new Date(0) : time);
+    calendar.set(Calendar.HOUR_OF_DAY, timePart.get(Calendar.HOUR_OF_DAY));
+    calendar.set(Calendar.MINUTE, timePart.get(Calendar.MINUTE));
+    calendar.set(Calendar.SECOND, timePart.get(Calendar.SECOND));
+    calendar.set(Calendar.MILLISECOND, timePart.get(Calendar.MILLISECOND));
+
+    return calendar.getTime();
+  }
+
   public static double[] getFrameTime(Attributes attributes) {
     double[] frameTimes = null;
     String frameIncrementPointer = attributes.getString(Tag.FrameIncrementPointer, null);