UITableView reloads old images

I know this has been asked many times, but please bear with me as I tried for several days to find a solution.

I have an rss parser, a tableview with: text, details and images set in AccessoryDisclosureIndicator.view.

Images are uploaded using the simple async GCD: fast scrolling for hundreds of results. NO lag, NO errors if I have a good connection.

The problem is that for a split second - they flicker when loading, because the cell is being reused. In addition, if the connection is poor, it sometimes leaves a hinged image, but the text / detail is correct, only the image is out of date ... So let me repeat, the text / details are updated perfectly and NEVER make a mistake, just the image sometimes rarely gets queued incorrectly with poor connections / grip scrolling forward and backward.

My question is, can someone help me cache / tag cell.accs.views? I tried installing cellIDs but had problems with my implementation. My code below works fine if the connection never slows down, just a little flicker when the cell reloads, which I don't mind.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

if (cell == nil) {
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];

    [cell.textLabel setNumberOfLines:3];
    cell.textLabel.font = [UIFont boldSystemFontOfSize:14.0];

    [cell.detailTextLabel setNumberOfLines:3];
    cell.detailTextLabel.font = [UIFont systemFontOfSize:12.0];
    cell.detailTextLabel.textColor = [UIColor blackColor];
}

RSSItem * rssItem = (RSSItem *)(_rssParser.rssItems)[indexPath.row];

dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH,  0ul);
dispatch_async(queue, ^{
    //This is what you will load lazily
    NSData   *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:rssItem.imageURL]];
    dispatch_sync(dispatch_get_main_queue(), ^{

        UIImageView *accImageView = [[UIImageView alloc] initWithImage:[UIImage imageWithData:data ]];

        [accImageView setFrame:CGRectMake(0, 0, accImageView.image.size.width, 92)];
        cell.accessoryView = accImageView;

        //[cell setNeedsLayout];//not needed
    });
});

[cell.textLabel setText:rssItem.title];
[cell.detailTextLabel setText:rssItem.summary];

return cell;}