text: DICOMHP.select = function(hpInstance) {
    var imageSetsSequence = hpInstance["00720020"].Value;
    if (!imageSetsSequence) {
      return [];
    }
    var matchedImageSets = [];
    imageSetsSequence.forEach(function(imageSet) {
      var selectorSequence = imageSet["00720022"].Value;
      selectorSequence.forEach(function(selector){
        var usageFlag = selector["00720024"].Value[0],
            selectorAttribute = selector["00720026"].Value[0],
            selectorAttributeVR = selector["00720050"].Value[0],
            selectorAttributeValue = null;
  
        if (selectorAttributeVR == 'SQ') {
          return;
        } else if (selectorAttributeVR == 'AT') {
          selectorAttributeValue = selector["00720060"].Value[0];
        } else if (selectorAttributeVR == 'CS') {
          selectorAttributeValue = selector["00720062"].Value[0];
        } else if (selectorAttributeVR == 'IS') {
          selectorAttributeValue = selector["00720064"].Value[0];
        } else if (selectorAttributeVR == 'LO') {
          selectorAttributeValue = selector["00720066"].Value[0];
        } else if (selectorAttributeVR == 'LT') {
          selectorAttributeValue = selector["00720068"].Value[0];
        } else if (selectorAttributeVR == 'PN') {
          selectorAttributeValue = selector["0072006A"].Value[0];
        } else if (selectorAttributeVR == 'SH') {
          selectorAttributeValue = selector["0072006C"].Value[0];
        } else if (selectorAttributeVR == 'ST') {
          selectorAttributeValue = selector["0072006E"].Value[0];
        } else if (selectorAttributeVR == 'UT') {
          selectorAttributeValue = selector["00720070"].Value[0];
        } else if (selectorAttributeVR == 'DS') {
          selectorAttributeValue = selector["00720072"].Value[0];
        } else if (selectorAttributeVR == 'FD') {
          selectorAttributeValue = selector["00720074"].Value[0];
        } else if (selectorAttributeVR == 'FL') {
          selectorAttributeValue = selector["00720076"].Value[0];
        } else if (selectorAttributeVR == 'UL') {
          selectorAttributeValue = selector["00720078"].Value[0];
        } else if (selectorAttributeVR == 'US') {
          selectorAttributeValue = selector["0072007A"].Value[0];
        } else if (selectorAttributeVR == 'SL') {
          selectorAttributeValue = selector["0072007C"].Value[0];
        } else if (selectorAttributeVR == 'SS') {
          selectorAttributeValue = selector["0072007E"].Value[0];
        }
  
        if (selectorAttributeValue !== null) {
  
        }
      });
  
      var timeBasedImageSetsSequence = imageSet["00720030"].Value;
      timeBasedImageSetsSequence.forEach(function(timeImageSet){
        var setNumber = timeImageSet["00720032"].Value[0], selectorCategory = timeImageSet["00720034"].Value[0];
  
        var mImageSet = new DICOMHP.imageSet(setNumber, selectorCategory);
        if (selectorCategory == 'RELATIVE_TIME') {
          var relativeTime = timeImageSet["00720038"].Value[0], timeUnits = timeImageSet["0072003A"].Value[0];
          
          mImageSet.setRelativeTime(relativeTime);
          mImageSet.setTimeUnits(timeUnits);
        } else if (selectorCategory == 'ABSTRACT_PRIOR') {
          var priorValue = timeImageSet["0072003C"].Value[0];
  
          mImageSet.setPriorValue(priorValue);
        }
  
        matchedImageSets.push(mImageSet);
      });
    });
  
    return matchedImageSets;
  };